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Originally Posted by richs347
To give you a better answer I need a little more info:
What size are the injectors?
Engine management system, chip, or stock computer?
Your combo appears to be beyond the stock computers abilities. If you have 42lb inj or larger you will most likely have to reduce fuel pressure at idle - at the detriment to higher rpms. The 6* is hurting the idle quality slightly. I see 12-13" at idle on my combo listed. (custom mild cam)
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36 # calibrated to the mass air "tube" stock computer and FPR. My fuel pressure gauge says roughly 40. I have tried advancing the timing to 10 but it made things worse.