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> SBC 302 is in, running!, Needs some tuning, any suggestions?
marks914
post May 31 2007, 10:24 AM
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Got the 305 out and put the 302 in, runs pretty well.
I am running an edelbrock 600,
Hydraulic roller cam .56 lift 236/236 duration.

I am in the process of tuning it right now. I have HEI vacuum advance hooked up to the timed port on the carb.

The engine has some lope to it, when I advance the distributor to smooth out the idle, it purrs like a kitten and no spark knock. The problem is when I advance the ignition timing this far, it is difficult for the starter to turn over the engine.

Here is what I am going to try, please tell me if this makes sense:
I was going to put the vacuum advance on the manifold vacuum port, thus giving more advance at idle, I do not think this would affect the initial start up advance, making the starter able to turn the motor over when hot.

here are some pics

Thanks

Mark

PS, the car is a bit quicker now, the power comes on at 3000 RPMs, so it is very driveable around town with the power where it needs to be.


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marks914   SBC 302 is in, running!   May 31 2007, 10:24 AM
marks914   ...   May 31 2007, 10:24 AM
marks914   ...   May 31 2007, 10:25 AM
marks914   ...   May 31 2007, 10:26 AM
jimkelly   don't use that foam air filter - darn - that i...   Sep 9 2007, 06:51 AM
marks914   ...   May 31 2007, 10:26 AM
pffft   ... Is the distributor vac advace or retard? Ma...   May 31 2007, 12:26 PM
herman maire   That looks like a VERY nice and clean V8 swap :b...   May 31 2007, 11:25 AM
JB 914   looking good :) post up the tuning results. i...   May 31 2007, 11:49 AM
tyler   Looks great. where did you get the valve covers?   May 31 2007, 11:59 AM
race914   Your project is looking awesome! The Porsche ...   May 31 2007, 12:35 PM
914-8   Nice! Be careful with that air filter. Most ...   May 31 2007, 12:40 PM
rick 918-S   Nice! Be careful with that air filter. Most...   May 31 2007, 12:55 PM
greybeard50   Ballpark answer to your question...SBC's like ...   May 31 2007, 12:59 PM
messix   it's ok to run the vac advance to the manifold...   May 31 2007, 01:10 PM
andys   As greybeard50 mentions, and perhaps a bit more in...   May 31 2007, 01:17 PM
messix   what heads are you running? iron or aluminum? late...   May 31 2007, 02:07 PM
marks914   Thanks for the input, The Dizzy is a summit bluepr...   May 31 2007, 02:45 PM
messix   Thanks for the input, The Dizzy is a summit bluep...   May 31 2007, 03:07 PM
Dr. Roger   Hey Mark, I had the same thing going on with mine...   May 31 2007, 07:52 PM
messix   BTW, the vacuum advance goes on a spark port. If y...   May 31 2007, 08:45 PM
marks914   Hooked up the vacuum gauge and I have 7hg" at...   May 31 2007, 09:26 PM
byndbad914   Hey Mike - I am going to just kinda reinforce a co...   May 31 2007, 11:11 PM
marks914   Its runnimg better. I changed to lighter step up s...   Jun 2 2007, 05:17 AM
JPB   Them valve covers are sick Okay, I want a SBC now...   Jun 2 2007, 08:11 PM
marks914   Got it idling decent finally. I got an accel adv...   Jun 6 2007, 06:08 AM
messix   Got it idling decent finally. I got an accel ad...   Jun 6 2007, 11:58 AM
Dr. Roger   Hey fantastic! Congratulations. Those 302...   Jun 6 2007, 01:58 PM
messix   it's another way to lean or richen the set up ...   Jun 6 2007, 07:19 PM
marks914   Its definately running lean. I drove it to work t...   Jun 6 2007, 08:17 PM
messix   Its definately running lean. I drove it to work ...   Jun 6 2007, 11:21 PM
LarryR   Sweet! I am now inspired to continue my projec...   Jun 6 2007, 11:13 PM
marks914   Well I have had it running pretty well for about 1...   Sep 9 2007, 04:17 AM
marks914   The foam air cleaner has been on my car for 5 yera...   Sep 9 2007, 10:48 AM
dakotaewing   Mark - What pistons are you running? Could you giv...   Sep 9 2007, 11:30 AM
marks914   Mark - What pistons are you running? Could you gi...   Sep 9 2007, 12:34 PM
dakotaewing   Thanks Mark - My heads are rated at -18cc Dome, so...   Sep 9 2007, 01:14 PM


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