1bbl to 2bbl upgrade

[benn3393]

I would like to upgrade the cab on my 200.
I've currently got a 1 bbl autolite 1100. From looking at it, I would guess that it is old enouch to be original.
I want to upgrade to a 2 bbl. Anyone know where I can find a decently priced carb and matching adaptor?
Is there more to doing this than slapping on the adaptor, the gaskets, and the new carb or is it really as easy as it sounds?

 

[Anonymous]

its pretty easy to swap carbs as long as you are mechanicaly capable. i did mine with no prob. the only thing i see as being a problem would be getting it tuned for your motor and maybe the fuel filter location, im not sure if it mounts in the same way the ford 1100 does. all i know is that i felt a big feeling of accomplishment after swapping my carb and finally getting it on the road after a month of down time.

 

[Anonymous]

The big things to be on the guard for are:

1) hood clearance afterwards

2) throttle linkage / kickdown linkage

3) weird vacuum ports

4) air cleaner problems (fitment)

The clifford adapter has the proper "twist" built in so it goes onto the manifold directly without the factory carb spacer/adapter, saving valuable hood space

the stovebolt adapter has no twist built in, you have to keep the factory manifold adapter.

I think the best is a direct mount. You have to pull the head off and take it to a machinist, where they mill the log flat. You then have to make an adapter plate to bolt the carb to the intake.

This is what that looks like (this is username "Mustang Geezer"s car)

 

[hasa68mustang]

I did what Doug did but I didnt make an adapter plate I bought one from my machinist, it was a 2bbl carb adapter to put a hooley *holley.. not a hooley....* on another car (it was something different) And I drilled and tapped 2 holes on the manifold and put it all together...

 

[Anonymous]

Yeah. I want to put a 2bbl on my daughters 82 Mustang with an I6. The carb on it now has alot of problems.And the performance.......crap...But the most part is the car has no guts.You accell from a stop and it wants to stall then stumble then it will start to accellerate slowly. But i have seen alot of ways to do the swap......well 2. One is the clifford adaptor and the second is machine the log flat,use flat stock aluminum,block the original carb location and redrill 2 holes for the new carb to mount.I don't know which one is the best to do. I would love to do a 2bbL fuel injection conversion.Something from a GM or something.I remember when the Holley Projection was new and a 2bbl set up was only $350. That would be a good set up to put on.

 

[2Blew2B]

I am assuming you have a mustang. I have a 65 with a 200. I also made the upgrade to a Holly 350 2 BB. It was a great addition and it did add a lot of power. Although, you must consider all the above mentioned.

The clearance is the biggest issue. I got my adapter from Clifford and despite what they may tell you, it will sit the carb too high. I took mine to a machine shop and had it cut down. Do NOT grind it down yourself as it will bevel. Also had to use a drop down air cleaner but fit nice after that.

The linkage will be the second most important issue. If you just want to get it going then just take any thin wall pipe and flatten it to fit over your current rod. It will take a little trial and error but you can make it work. I'll send you pic if you want them.

I am current working on a cable system and I will detail that on my sight when I am done. Take a look at my sight for some engine pics.

You will love the upgrade

 

[Anonymous]

did anyone mention stovebolt engine company?

http://www.stoveboltengineco.com

this guy rebuilds 2bbl carbs that will work on our 6's

http://www.stoveboltengineco.com/acartpro/product.asp?productid=97


call him up and talk to tom, he can help

my opnion is dont buy his adaptor as it will orientate the carb wrong (uless you are going to cable throttle)

 

[WhitePony]

Heh, even if you DO use a cable throttle the weird angle that the carb sits at looks pretty stupid. To make it sit straight you have to use the stock spacer as well, and that adds to the clearence problem. I bought both the Stovebolt and Clifford adapters, and am going to use the Clifford untill I have the head milled for a direct mount.

 

[Anonymous]

I was planning on using the clifford and the stovebolt 2bbl carb

I never seem to get to it though...soon..I hope

yep, I agree, dont buy the stovebolt adaptor

I am so surprised someone here hasnt mass produced one at about $30

 

[Anonymous]

I used one of the Holley 5200's from Stovebolt and have been running it since 2002 on my mustang. I drive it daily and haven't had any problems since I figured the jetting out. Buy spare jets from him so you can play with it. I have mine set up right now a little leaner to sip the gas instead of swallowing at this time.
The numbers on the carb are the jet #'s. I have a #145 in the secondary and a 130 in the primary right now. I did have a 138 in the primary initially. After you put the air cleaner on there, you can't see the carb anyway, so looks didn't matter to me.
With the #138 primary jet, I was getting 18-19mpg, now with the 130, I get 23-24.

http://www.geocities.com/dualsprings/ducktangpage2.html

 

[CoupeBoy]

holy crud ducky, where ya been? I have referenced atleast 2 threads to your carb mounting page (with stovebolt adapter). Your last recorded post was in Dec of last year!

The other option is to make your own adapter. I made one, and so did burnrelief (havent seen him around in a while either), I think FrankBoss make one also. Its pretty simple and I can post pics of the entire process Wednesday if you like (test tomorrow, so cramming tonight and work+test tomorrow)

-ron

 

[FrankBoss]

I made my adapter for sure, It works well.
I'm going to make another with some other mods. but I'm using the stock aircleaner top and custom Pinto base...clears the hood and looks stock.

Frank

 

[Anonymous]

Sold my house and all the pains that go with it. Now trying to build another. I finally got tired of working in the gravel driveway on the stang and now I am going to build a shop before the house is finished. Got to get those priorities straight. Glad the web page could help anyone even though it is on the blunt edge of high technology. I need to update the profile, the mustang now has over 450k on it and still drive it about 3X a week to work. I can tell when I get referenced here, good old geocities locks me out when I check the stats. That is great. It is one of the best things I have done to the 200. Put a small primary in their for the mileage and big secondary for the power. I keep playing with the jets to make it even between the two (hesitation) and for season changes. Right now, I have it on a diet. Since I have the Monte Carlo bar, I had to trim the breather to get it to fit over it. I also made a custom base out of some scrap metal I had laying around. I need to put one of those pic's on the website. She isn't pretty, but it works. I want to make a ram air like Geezer and work in a hot air draft off the headers. If you go to the salvage yards, the old K-cars had the same carbs with a box type air filter, I was thinking about modifying one of those also. Those Cliffy headers are going on 16 years old now and finally had a pipe to break loose off the collector. Keep sending the references to the site, It saves a lot of typing and explaining.

 

[Anonymous]

Well I would love to see some of your guy's pics of the custom plates you made. I saw the one about 4 reply's down on this post.Looks like stock was used to block off the 1 carb hole and the next peice of stock was used to raise the 2bbl carb up.

On the stang I have a cable for the accelerator. I think i should also have a rod for the kick down on the trans which I heard was a C-4????If it is a C-4 can you do a AOD swap on these engines?????

Thanks for your help guys.