I've got what sounds like a rich rolling condition.

This is the first time I've started the new motor. I have great heads, edelcrap high flow base and runners, SVO 24# injectors, 218/226 510/510 114LSA cam, and 355 cubes. I have to modulate the throttle to get it started and then keep a little on the throttle to keep it alive. It runs up to ~1500 rpm, drops down to ~900, almost dies, throws a quick SES, and revs back to 1500, and over again.

I set my chip for 26# injector constant. Timing is 4 adv when it almost dies and runs up to 30 adv when it revs up. Base timing does not affect the condition. Took out a bunch of turns off the AFPR, which moved the rolling range down a couple hundred rpm. Of course, my AutoXray is not connecting and the quick SES flash is not storing a code. Car smells rich.

I'm going to buy a fuel pressure guage tomorrow to see if I'm in the ballpark. I'll also check for vacuum leaks with a butane torch. I thought the chip may not be working, but it's not throwing a code.

Any other suggestions? I'm fried and barely thinking straight. Thanks for the help.

 

Are you still running the MAF?

 

Yes

 

lol drugs are bad mmmmkay

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1989 pontiac firebird
bright red exterior(just repainted)
grey interior
5 spd
305 TBI (stock)
WS.6 formula wheels
3.73 posi rear end
http://members.aol.com/j007golden/Mikey89.html
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1985 trans am
factory bright yellow
4 wheel disks
16 inch wheels
305 TPI
power antenna and mirrors
t tops

 

Not drugs - fumes from exhaust!