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Old 05-16-2019, 06:34 PM   #17 (permalink)
Hersbird
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Join Date: Feb 2014
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The Corvette posted above can do it at 820 rpm with a similar LS small block, you can too. If you aren't burning the fuel your A/F ratios are off for those RPMs. The factory working as designed wouldn't do that. You have leaking injectors or an aftermarket tune that loads extra fuel at low rpms in anticipation of a full throttle acceleration run, that is a performance tune. If you are willing to run aftermarket tunes, get a system that can load multiple tunes and even try the other way, a lean burn low rpm tune. Or just be honest and say, I really don't care what mpg it gets I want to go with the flow of traffic or even faster.
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