tealman92

I have a 89 gta auto with new 355 it seems only to happen when the car is cold. It runs really rough and hesitates then when it warms up its fine. It just started doing it since I just got the car fixed it had a bad fuel pressure regulator so I cahnged that and put it 24# injectors any thoughts

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1993 slp prototype trans am (mods)BBK headers and full 3" exhaust BBk throttlebody ram air induction 13.9 @ 99
1989 GTA
1.776 60' 12.67@106

Kevin91Z

Did you reprogram the PROM for those larger injectors?

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1991 Camaro Z28
355 RWHP, 360 RWTQ
12.803 @ 108.50 MPH (1.923 60')
Member: Southern California Thirdgenners
-=ICON Motorsports=-
Work: Manley Performance Products

tealman92

yes it has a custom burned chip specificly for my application I think i found the problem I had 2 plug wires burned on the headers and the fuel pressure needed a bump as it was I was running lean at idle so Ill try that in the morning and see how she does Ill keep you posted