Originally Posted By Challenger 1
Originally Posted By can.al
How will higher octane fuel affect your a/f ratio?
Going to a higher octane fuel...will it run richer or leaner?


The specific gravity of the fuel effects tuning through a carburetor, not octane.

iagree,Somewhat work The oxygenated additive fuels like Q16 do need different jetting than C16, usually 5 to 10% richer to go as fast as they can on that fuel shruggy

Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)