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Old 07-20-2012, 03:16 PM
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F-BIRD'88 F-BIRD'88 is offline
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What stock heads? Casting number. Your .488" cam is not 292@.050".

Most likely 234@.050". You should be using a 3500++stall converter so you leave under full turbo boost. You will need a lot more boost to get any power , working with crappy stock heads.

start tuning with 110+ octane gas. 10-12 psi boost and 30-36deg timing.

Pump gas will require less ignition timing. 26 to 33deg. and will limit the amount of turbo boost you can run without detonation. 6 to 8psi.

start by simply locking out the distributor advance and start tuning around 28deg .

Make sure the carbor EFI is plenty rich @ WOT. 11:1 AFR @WOT (rich is safer)

Stock crappy restrictrive heads EG: 882-624 castings etc will cost you 100++ hp compared to good hi flow high prf heads.

You lack of detail and accuracy in detailing the engine combo probaily says it all.
A equal lack of engine build details is really going to limit the power made.

again start tuning using high octane 110+ gas. (so you can use boost and timing to make power with crap heads without melting pistons)

Then detune ( less timing less boost) for pump gas.

stock heads are really going to limit power.

I would have used a 224deg cam on 114 and a dual plane hi rise RPM manifold.
( a 234deg cam and single plane manifold may need up to a 5000 stall to get any real turbo boost
at launch, depending on the turbo used. The turbo AR ratio needs to be correctly matched to get a good boost response curve.

You are not going to make any real power with 5psi boost and crap stock heads.

Get some real heads for it.

Last edited by F-BIRD'88; 07-20-2012 at 03:24 PM.
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