I was jetted 88/100 at part throttle and the air/fuel ratio was good, but the WOT A/F ratio was too lean. I had to jet my primary up higher than normal because I didn't have jets larger than 100. When I changed it to 92/100 the car was too rich at part throttle, but ran great at WOT. So currently the carb runs like crap driving around town, but runs great at the drag strip when at WOT.

My question is, will it work the same at WOT if I reduce the primary jet by 4 numbers (making the cruise A/F ratio closer to optimal) and add 4 numbers to the secondary? I was thinking of buying a set of 104 jets to make it 88/104....any issues with this thought before I order the jets?

My car is mostly drag, some street with a 750dp on a single plan intake, running on e85.

Thanks in advance.


67 Barracuda street car, 408, e85, 1.38 60', 6.44 @105.9 in the 1/8 mile, 10.19 @130.5 in the 1/4...so far....