Logfile
So far my FiTech has been working pretty good. Starts every time and runs well, hot or cold. My ride is a 70 Bronco, 302, FiTech 400hp, FCC2. Stock distributor, with ignition module. 3 on the tree manual transmission. 3.50 gearing in the rear-end. 1st and 2nd gear are smooth and responsive, 3rd bogs a bit, especially when I put my foot down. Could be the gearing, but I would like to fine tune it. Also, I am only getting about 10 mpg. I know my Bronco should not get a high MPG but I thought it would be better than 10. Here is a 30 second log at idle, any thoughts?
https://www.dropbox.com/s/9uhvh26uczczru1/DashBoard23.csv?dl=0
That log looks amazing.
Your fuel mileage will come from cruise ignition timing and target AFR. Watch your data during highway speeds. Take note of your MAP value and RPM. Slowly start leaning the AFR targets near those values. If you feel a lean surge or the engine begins to heat up, then it is too lean.
Thanks Austin.