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Combo opinons 355 stealthram vortec

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Old Mar 23, 2009 | 09:43 PM
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speedmachine's Avatar
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From: Toronto,Ontario
Car: 1989 IROC-Z
Engine: 346 LS6
Transmission: T56
Axle/Gears: Hybrid 8.8 3.73
Combo opinons 355 stealthram vortec

well. i have to say ive been struggling with this car for a long time.
heres what ive got
355 flat tops
vortec heads
268xfi cam 1.5 rockers
24 pound injectors
kirban AFPR
HSR 58mm lingenfelter TB
4inch CAI stock maf
longtube 1 5/8 headman headers dual 2/5" y pipe 3"midpipe no cat hooker aerochamber
2400 vigilante converter
2.77 gears
my last time was 13.6 at 108 with my old ported tpi and it pulled really hard
all ive done is change the stall from 3600 to 2400 and do the hsr and throttle body.... The idea was to let me breath more up top and give me more power to play with, with a lower stall.

ive got the car running at 45psi no codes but basic tune and it is so slow.... have i made a massive error here with the stall or is the stealthram just to different of an animal to have a stockish tune?

any opinions would help.. i know my gears wouldnt help me know with my lower stall.. certainly they didnt bother me before.

Im unsure of what to do to this thing to make some harmony.
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