You probably need to play with the delay until afterstart fuel is introduced. As you increase the cranking PW the chance of flooding it just after lightoff becomes higher so you need to delay the introduction of more fuel until the cranking fuel is burned.
If it stumbles & dies unless you pedal it there is a chance it's too rich from cranking fuel and the additional air you give it when you crack the throttle keeps it running-- so increase the # of revs before afterstart to slow the addition of warmup fuel.
You may also want to try maxing out the IAC position during starting; I've found this helps quite a bit. If the rpm's "flare" too much then back it down some.
You may have to do all this in tandem with backing down the cranking fuel some.
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1969 Chevelle
Old setup: Procharged/intercooled/EFI 353 SBC, TKO, ATS/SPC/Global West suspension, C6 brakes & hydroboost.
In progress: LS2, 3.0 Whipple, T56 Magnum, torque arm & watts link, Wilwood Aero6/4 brakes, Mk60 ABS, Vaporworx, floater 9" rear, etc.
Last edited by Blown353; 03-03-2008 at 12:07 PM.
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