Quote:
Originally Posted by MySons68C20
Have you considered a wide band 02 sensor to see what your town driving afr is?
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I have one installed, and had my vacuum guage in the cab on a long piece of hose for tuning. As I knew I had to becareful with tuning a higher compression motor.
Around town it is about 12.5 to 13-1 afr. On the freeway or in 3rd instead of fourth on the street it is between 13.5-13.8-1 mostly.
It has ran fine at 14-14.5 on the freeway, but that's tip way to lean on me right now. My soon to be newer engine will get a cam swap to help out
I quit taken out more jets due to detonation issues, and just adjusted to ping less.