a/f meter in car using 110 octane

Trailbeast, a better A/F ratio for cruise is 13.5 or higher. I like to be in the 14.0-14.5 range. WOT 12.0-13.0. Usually on ethanol infused pump gas, I've seen 12.3-12.5 ranges to be good. Without getting some MPH readings, it's just a guess. That's definitely a safe range.

Depending on the carb, the changes that need to be made are different. If the main circuit isn't active, main jet changes won't alter your cruise A/F. Air bleeds, emulsions, IFR on holleys can make a big change in cruise a/f. Ede/carter, rods, springs, etc.

Maybe start a fresh thread. :cheers: