All Small Six Starting new build

This relates to all small sixes
It's getting closer to go time! Got the T5 in and driveshaft shortened. Fuel pump is in tank, plumbed and wired. I have a few small things to take care of in the engine compartment, just waiting on some fittings. I'm running a catch can system for the PCV valve, with the vacuum side pulling from the intake manifold. Getting a little nervous on start up and break in though. I know a few of you guys have converted to the Sniper/Hyperspark system, but I'm not sure how many have done a full build with them. Here's my thoughts for the process.....Unhook the fuel relay for the pump and coil wire and crank engine over to verify 15* for timing set on the handheld. After verified, rehook relay and purge enough fuel through line before pressurizing system. Fingers crossed and fire off engine. Manually bring RPMs up to 2000-2500 for 20 to 30 minutes for break in. I've got a oil pressure gauge to monitor oil pressure. A couple other things I need advice on. Idle RPM's I was thinking 750-800? Also, what should the timing be set to? I've seen from around 24-30 degrees? Any advice for any of this would be greatly appreciated!

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That is really turning out nice! Can't wait to hear how it drives with the T5 and all the additional good stuff.
 
Hey @Montytm26 Very nice looking build you've got going there. I'm not fuel injected so I can't comment about that but your process sound reasonable to me.

Regarding timing, I'm running a Clay Smith 6474 and when I first fired up my engine for cam break in I was probably running it around 12 degrees advanced or maybe even less. I have an HEI distributor. When I decided to get the car on the road to put some mileage on it I was probably running +20 degrees initial and overly rich. I need to put my timing light on it again to find out where it's at now.

I have just over 2000 miles on my engine and for my setup and the limitations of the small log head, it's about perfect. I have backed timing down a little over time. I suspect I'm at about +15° initial advance. My vacuum advance is +10° and my mechanical advance probably kicks in somewhere in the teens around 1,500 RPM and is all in before 3,000 RPM. I am running one gold and one silver spring so one stock spring and one light spring. I ran two light springs for a while but it surged at parking lot speeds (1st gear on my T5).

I'm on a small log intake and my idle varies depending on level of warmed up. When it is warmed up enough to drive, my idle varies between 500 RPM - 600 RPM. When it is warmed fully and running at optimum, my idle is about 900 RPM. I think if it was fuel injected and an aluminum head and intake, I wouldn't have such a wide variance and I could probably set a smooth idle at about 600 RPM - 700 RPM.

I hope that gives a little insight.
Yeah that's some good information to have. Doesn't seem like there are too many guys that's gone this exact route. Just want to get it right the first time
 
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