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Search found 232 matches

by 161henry
Sat Aug 17, 2019 4:25 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Tri Power Again
Replies: 140
Views: 17819

Re: Tri Power Again

I don't know why it should go lean on a tip-in. Maybe check your accelerator pump circuit to make sure it is not leaking back down or not filling properly. Well with the 3 carbs working together, I didn’t set it up progressive you barley need to move the peddle. So the accelerator pumps just dribbl...
by 161henry
Fri Aug 09, 2019 4:55 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Tri Power Again
Replies: 140
Views: 17819

Re: Tri Power Again

I think the cruise portion (high MV) could be leaner. Ok I can do that. I was worried about when I come to a hill and ease into the gas the afr gauge goes off the dial lean and it really doesn’t pull very well until afr is 16 and working its way back to 13-14. Going way lean for a few seconds is ok ...
by 161henry
Fri Aug 09, 2019 12:18 am
Forum: 240-300 "Big Block" Six Performance
Topic: Tri Power Again
Replies: 140
Views: 17819

Re: Tri Power Again

Anybody had time to look at the videos? Any suggestions how to improve things? Im concerned that when pulling a hill the afr goes way lean. Is that something to worry about? FTF at one time you said you modified the idle Circuit in your carbs. What did you do and why. Most of my Hwy driving is still...
by 161henry
Sun Aug 04, 2019 12:05 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Tri Power Again
Replies: 140
Views: 17819

Re: Tri Power Again

Here’s a couple videos I just made if you’d take a look and give your advice I’d appreciate it. I have it a little more timing and I think it’s about as close as I can get it. The first is a pull in 3rd gear from 2000-4000 it was still pulling but that was fast enough driving with one hand. The 2nd ...
by 161henry
Sun Aug 04, 2019 10:00 am
Forum: 240-300 "Big Block" Six Performance
Topic: Chinese autolite 2100. Ever try one?
Replies: 35
Views: 5152

Re: Chinese autolite 2100. Ever try one?

So how did this carb turn out?
by 161henry
Sat Aug 03, 2019 2:12 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Tri Power Again
Replies: 140
Views: 17819

Re: Tri Power Again

I have an afr in it. I’ve been running 101 jets and the 2280 metering rods. At wot it would sit on 10.5. My Ganddaughter and I took it for a 500 mile cruise Thursday. Running 70 to 80 mph on the interstate we got 17.4 mpg. At that speed the afr was around 12-13. At 60 mph on the way home we got 19.5...
by 161henry
Fri Aug 02, 2019 10:05 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Tri Power Again
Replies: 140
Views: 17819

Re: Tri Power Again

Is it advisable to run a different sized jet in the middle carb? I have 98s in all three. Can I run a 101 in the center. Or do they all need to be the same
by 161henry
Mon Jul 29, 2019 11:24 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Tri Power Again
Replies: 140
Views: 17819

Re: Tri Power Again

You've done a really great job! The question is: Are you done or are you thinking about more changes to the engine? Well you and I have been talking about having some head work done. You know all I had was 240 heads without hard seats. I bought a 1978 300 for $50 just for the head. The shop said th...
by 161henry
Sun Jul 28, 2019 5:41 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Tri Power Again
Replies: 140
Views: 17819

Re: Tri Power Again

Looking back I started this post in April of 18. I didn’t tinker much over the winter of 18/19. But I have this setup running pretty darn good. It’s a little on the rich side on hot summer nights. I’m sure you guys that know what you’re doing could make it better. But for a redneck building somethin...
by 161henry
Tue Feb 26, 2019 4:22 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Tri Power Again
Replies: 140
Views: 17819

Re: Tri Power Again

So extra torque is good. Do you think roller rockers would make up for the extra strain on the valve train caused by the 1.7 ratio?
by 161henry
Mon Feb 25, 2019 10:35 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Tri Power Again
Replies: 140
Views: 17819

Re: Tri Power Again

Ok that makes sense. Other than a rough idle what change could I expect with the 1.7 rockers?
by 161henry
Mon Feb 25, 2019 10:03 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Tri Power Again
Replies: 140
Views: 17819

Re: Tri Power Again

So what CR would be to high?
by 161henry
Mon Feb 25, 2019 8:23 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Tri Power Again
Replies: 140
Views: 17819

Re: Tri Power Again

pmuller9 wrote:1.84/1.60 is good. Can't think of a reason to go bigger.

What rocker arms are you planning on using?


Will going with the bigger stud open up more options ?

I’m kinda wanting to try some 1.7 rockers
by 161henry
Mon Feb 25, 2019 6:31 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Tri Power Again
Replies: 140
Views: 17819

Re: Tri Power Again

That's fine. I was just curious about your reason. Just be sure to open up the chambers so the compression isn't raised beyond what the Comp 260 cam will tolerate for detonation. What size valves are you going to use? Are you going with screw in studs? 1.84 and 1.60 unless there’s a good reason to ...
by 161henry
Mon Feb 25, 2019 4:17 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Tri Power Again
Replies: 140
Views: 17819

Re: Tri Power Again

Why not use a 300 head and save time and work? I don’t know. I have 2 240 heads and I hate to see them go to waste I guess. I have the 300 head on it now with hardened seats already. But I’m hoping to get a head done and ready to install before I tear it down. I could likely get a 300 head with the ...
by 161henry
Mon Feb 25, 2019 8:38 am
Forum: 240-300 "Big Block" Six Performance
Topic: Tri Power Again
Replies: 140
Views: 17819

Re: Tri Power Again

You do realize that if you raise your compression ratio and keep the Comp 260 cam you will need to go to premium gas to prevent detonation. What is the compression ratio at the present? My compression now is about 8.4. I try to run 90 or 91 in it all the time now. 93 if I can find it But the thread...
by 161henry
Sun Feb 24, 2019 8:48 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Tri Power Again
Replies: 140
Views: 17819

Re: Tri Power Again

I’m getting a 240 head ready to send to the shop. Somewhere there was a good thread about unshrouding the valves. I can’t find it does anybody remember what it was called? I’m going to have the head checked and the bowls cut. I’ll have them do as much as they can then I’ll start porting and relieve ...
by 161henry
Wed Feb 06, 2019 9:16 am
Forum: 240-300 "Big Block" Six Performance
Topic: Tri Power Again
Replies: 140
Views: 17819

Re: Tri Power Again

Last night I had some time and I installed the lightest advance springs the kit had. I used the weights that came with the HEI distributor and now I have 20 degrees advance just off idle with max of about 32 degrees. Before when I’d step on the gas you could feel the engine lag. When the timing fina...
by 161henry
Fri Jan 11, 2019 11:03 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Tri Power Again
Replies: 140
Views: 17819

Re: Tri Power Again

Well I’m going to get back to work on this. Spring will be here before we know it. Over the winter I bought a Chevy style HEI distributor. Mostly to clean up the firewall and eliminate some wiring. I talked to a machine shop who said they would put the bigger valves in for $280 parts and labor. And ...
by 161henry
Thu Sep 20, 2018 8:26 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Tri Power Again
Replies: 140
Views: 17819

Re: Tri Power Again

Ran 5/16 fuel line and still using the mechanical fuel pump. I installed a fuel pressure gauge and it runs right at 5.75 lbs and never goes below 4.5 at wot. It seams to run good. I’ll mess with the distributor next.
by 161henry
Fri Sep 14, 2018 11:32 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Tri Power Again
Replies: 140
Views: 17819

Re: Tri Power Again

I’m guessing you 1/4 inch fuel line isn’t helping? When I put the electric pump on I should use 5/16?
by 161henry
Sun Sep 02, 2018 10:16 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Tri Power Again
Replies: 140
Views: 17819

Re: Tri Power Again

Well sometimes it’s the simple things. Keep in mind I realize I need to recurve the DS2. And I have some metering rod work to do. But, I have the manual ford fuel pump with the fuel filter on it. I also installed an inline filter because the tank I used had sat a long time. I cleaned it the best I c...
by 161henry
Thu Aug 30, 2018 10:03 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Tri Power Again
Replies: 140
Views: 17819

Re: Tri Power Again

THE FRENCHTOWN FLYER wrote:30 gph = 6.1 lb/gal x 30 = 183 lb/hr

At .500 lb/hp hr
183/ .500 = 366 HP

If you are making 366 hp or less that pump is fine.

I use a similar cheap pump on my '30 Ford tub w/ a 5.0L Mustang GT engine - no problems.


I’m assuming I delete the mechanical pump?
by 161henry
Thu Aug 30, 2018 10:00 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Tri Power Again
Replies: 140
Views: 17819

Re: Tri Power Again

30 gph = 6.1 lb/gal x 30 = 183 lb/hr At .500 lb/hp hr 183/ .500 = 366 HP If you are making 366 hp or less that pump is fine. I use a similar cheap pump on my '30 Ford tub w/ a 5.0L Mustang GT engine - no problems. Ok I’ll get one on there hopefully this weekend. Actually I think the ones Farm and F...
by 161henry
Wed Aug 29, 2018 10:29 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Tri Power Again
Replies: 140
Views: 17819

Re: Tri Power Again

Over the last 8 days I’ve driven to Huntington Indiana back to Iowa. Then to Phoenix and back to I’ve been out of the shop. If I were to buy an electric fuel pump would a $30 parts store 30 gph 3-7 lbs pump do the trick or no I need an $80 Carter 100 gph 14 lbs pump with a pressure regulator?
by 161henry
Sun Aug 12, 2018 11:42 am
Forum: 240-300 "Big Block" Six Performance
Topic: Tri Power Again
Replies: 140
Views: 17819

Re: Tri Power Again

Tell me if my thinking here is correct. The afr was too rich at idle and cruise. Then I realized with 3 carbs at 60 mph I don’t think I’m out of the idle circuit yet. I adjusted the idle screws and can now cruise at 12.5 and 14 afr. Also I can recurve the DS2 myself but I’m wanting to clean up the f...
by 161henry
Fri Jul 06, 2018 12:32 am
Forum: 240-300 "Big Block" Six Performance
Topic: Tri Power Again
Replies: 140
Views: 17819

Re: Tri Power Again

What do you think I have a video with the tach, afr and a vacuum gauge. 91 octane gas, 12 degrees static timing. Vacuum advance hooked to manifold. 2280 rods and .101 jets. If I stab the throttle at low rpm it goes lean and starts missing. The first minute or two I’m getting out of the alley it’s no...
by 161henry
Wed Jul 04, 2018 12:03 am
Forum: 240-300 "Big Block" Six Performance
Topic: Tri Power Again
Replies: 140
Views: 17819

Re: Tri Power Again

Took another drive. With the 2280 metering rods and the .101 jets it’s a little rich 12-13.5 at 60 mph. Leans up to 13.5-14 around 70mph. At WOT, when you get on it the afr goes off the gauge over 18 then as rpm increases afr goes down. It hits 12.5 just before time to shift, 4500 rpm. What do you f...
by 161henry
Tue Jul 03, 2018 9:44 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Tri Power Again
Replies: 140
Views: 17819

Re: Tri Power Again

I just came home from a drive with my AEM air fuel ratio gauge installed. The sensor is in the front manifold. Idle is about 11 cruise is way to lean, 17.5. WOT is 14-15. This is with the .095 jets. I’m going to put the .101 jets back in for now and see what afr readings are. I’m running 91 octane g...
by 161henry
Fri Jun 22, 2018 7:54 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Tri Power Again
Replies: 140
Views: 17819

Re: Tri Power Again

I did some work on the rat today. I put a T on the manifold pcv so I can get away from port vacuum to the distributor. I set the carbs with a vacuum gauge then the timing. Most of my midrange issues are gone now. I think I need the mechanical advance to come on sooner there’s none until 1200 rpm. I ...
by 161henry
Wed Jun 20, 2018 9:32 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Tri Power Again
Replies: 140
Views: 17819

Re: Tri Power Again

This may or not help you but my tri power tuning issues went away when I screwed filters directly in the carbs and then drove it some...Then tore down each carb all the way, not disturbing the filter, defuzzed the gaskets, cleaned out all passages...After that no more issues.. Some times it took a ...
by 161henry
Sun Jun 17, 2018 12:42 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Tri Power Again
Replies: 140
Views: 17819

Re: Tri Power Again

I guess the link didn’t work but it’s an O2 sensor for a 95 F150 with a 4.9
by 161henry
Sun Jun 17, 2018 12:39 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Tri Power Again
Replies: 140
Views: 17819

Re: Tri Power Again

https://www.rockauto.com/en/catalog/for ... oxygen+(o2)+sensor,5132

So if I get 2 of these I can use a multimeter to read air fuel ratios??
by 161henry
Sat Jun 16, 2018 11:41 am
Forum: 240-300 "Big Block" Six Performance
Topic: Tri Power Again
Replies: 140
Views: 17819

Re: Tri Power Again

Are you saying the correct thing to no is recurve the distributor or get the edsi6? I understand the lean condition and filing the rod. But is that the right way to fix it? Or is this about as good as it gets until I put a wide band on it?
by 161henry
Fri Jun 15, 2018 10:14 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Tri Power Again
Replies: 140
Views: 17819

Re: Tri Power Again

Just took a test drive with the 2280 rods and .095 jets. That combination has ok bottom end and WOT but stumbles horrible mid range. I pulled number 1 plug and it’s white. I’m thinking to lean now. Really I think it pulled the best with mix matched metering rods .040,.042.5 and a .45 with the .101 j...
by 161henry
Thu Jun 14, 2018 10:38 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Tri Power Again
Replies: 140
Views: 17819

Re: Tri Power Again

I have the bugs worked out of the linkage. I put the metering rods with at .048 tip in all 3 carbs. The plugs show it’s still rich but it pulls and idles very well. The timing is set at 11 btdc. I’m assuming the next step is to try the .095 jets I have?? What changes should I look at for the timing?...
by 161henry
Mon Jun 11, 2018 6:16 pm
Forum: 240-300 "Big Block" Six Performance
Topic: TRIPLE DEUCES
Replies: 7
Views: 1519

Re: TRIPLE DEUCES

I like it keep the pics coming
by 161henry
Sun Jun 10, 2018 8:51 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Tri Power Again
Replies: 140
Views: 17819

Re: Tri Power Again

Ok thanks I received the air cleaners Friday. And took a little ride after I fixed the front carb https://youtu.be/BnuMJuDPEcY
by 161henry
Thu Jun 07, 2018 4:51 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Tri Power Again
Replies: 140
Views: 17819

Re: Tri Power Again

Fix the front carb throttle body, first, and then just keep a tab on what metering rods you have. 75-2280 metering rods a just common in between the red line mixtures in the table above. I guess there's no point on buying them unless you need 'em. 101 jets lean the mixture out some. The goal is to ...
by 161henry
Wed Jun 06, 2018 8:44 am
Forum: 240-300 "Big Block" Six Performance
Topic: Escort carbs
Replies: 3
Views: 797

Re: Escort carbs

Ok thanks for the replies. I’ll keep them around
by 161henry
Tue Jun 05, 2018 10:34 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Tri Power Again
Replies: 140
Views: 17819

Re: Tri Power Again

https://rover.ebay.com/rover/0/0/0?mpre ... 2678273975.

Like these with a .093 or .094 jet
by 161henry
Tue Jun 05, 2018 10:29 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Tri Power Again
Replies: 140
Views: 17819

Re: Tri Power Again

If I understand correctly. When you say I need a needle with a .055 tip to start with my .101 jet. Am I thinking correctly when I say .101-.055=.046? So does that mean any combination of jet and needle that equals .046 is a good starting place? There are quite a few needles on ebay
by 161henry
Mon Jun 04, 2018 9:09 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Tri Power Again
Replies: 140
Views: 17819

Re: Tri Power Again

Middle is 120-401. Metering rod is a 75-1840
by 161henry
Mon Jun 04, 2018 8:18 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Tri Power Again
Replies: 140
Views: 17819

Re: Tri Power Again

Right now I’m working on the front carbs throttle plate. I have the front and rear carbs apart they both have 120-401 jets. The front metering rod is a 75-1967. The rear rod is a 75-1854. I have a spare rod 75-1867. I’ll take the middle apart and see what’s in there. I need to re read all this info ...
by 161henry
Sat Jun 02, 2018 11:44 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Tri Power Again
Replies: 140
Views: 17819

Re: Tri Power Again

My front carb, the throttle plate doesn't seal very well when completely closed. I've tried loosening the screws and adjusting it. It's better but not good enough. Any suggestions?
by 161henry
Sat Jun 02, 2018 10:32 am
Forum: 240-300 "Big Block" Six Performance
Topic: Tri Power Again
Replies: 140
Views: 17819

Re: Tri Power Again

I need to put a return spring on each carb. Right now I have one on the shaft. I think that will insure all 3 return closed. I'm running the 2 outside carbs with the idle screws clear in and throttle plates closed at idle. the center carb is a little different. it's older and slightly shorter but I'...
by 161henry
Fri Jun 01, 2018 10:53 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Tri Power Again
Replies: 140
Views: 17819

Re: Tri Power Again

I'll tack weld everything up when I'm sure it's where a want it.
by 161henry
Fri Jun 01, 2018 9:40 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Tri Power Again
Replies: 140
Views: 17819

Re: Tri Power Again

https://www.dropbox.com/s/5ws978kxbx6egh3/20180601_194345.jpg?raw=1 the first pic is a piece of black pipe with ball bearings in both ends. This is an idler sprocket with a sealed bearing. the sprocket is solid and the shaft uses the bearing. other than that ready bolt, rebar, door hinges and a litt...