Thread: Tuning with A/F meter
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Old 05-26-2010, 07:42 PM
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randlej randlej is offline
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Join Date: Jan 2009
Location: Lakeway, tx
Cobra Make, Engine: Lonestar Classics
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Default Tuning with A/F meter
Some questions on setting jetting for cruise and WOT. I just hooked up my new Innovate LM2 today and have the following numbers on a 351W with 650 double pumper running 68 jets front, 6.5 PV front and rear, and 73 jets rear.

Average cruise 12.5 A/F

WOT fairly steady at 13.8 A/F

I would like to get the cruise to 14.5 and the WOT at 13.

Can I do this correctly by lowering the primaries and raising the secondaries till I find the right combo, or is it suggested to also modify the primary power valve orifices?

Any suggestions/advice appreciated. Not sure if I am ready to dive into modifying the power valve flow rates just yet and I'm guessing those of you who have done that have really dropped the primary jet sizes for cruise mpg??

Thank you.
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2009 Lonestar Classics - 351 W
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