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Re: Importance of a proper tune.
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Originally Posted by MSlewis
Excellent torqueband & impressive peak numbers. Looks like if you had a little more time with the dyno you could get rid of those AFR fluctuations as well. Makes sense having to lower the ratio for the ethanol. Curious, what size valves are you running in those heads?
BTW, what gear were you pulling these runs on & did you have the converter locked up from the start? If not when did you engage it?
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Werd on the size valves in the heads.
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1988 GMC Sierra SBSC
Hotchkis/Belltech 5/7, Edelbrock IAS, Eagle Forged 4340 Internally Balanced 383 Stroker, Keisler 6 Speed, 14 Bolt rear from 454ss, Shaved Gate, Tails, Stepshavers, 7427 $0D w/ Vortec MAF, Thinkpad T41 w/ 1512 Megs Ram and Vista, Ostrich, ALDL Cable, TunerProRT.
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