Quote:
Originally Posted by Moritz55
My 427SR Roush (351W) with QF 770 Holley & 5sp TKO-600 ... has 22k+ miles on it.... still get ~11.5mpg City... 16mpg Hwy ... Just tuned it 2months ago .. I can get 250-260miles on a tank full if I drive mostly highway with a couple gallons to spare...  |
Realizing all engines are different, would still love to learn more about your setup. Things like carb jetting, power valve, initial/full dist. advance (including springs used), ignition source/type (i.e. MSD 6AL), trans OD ratio and rear end gearing, etc. I have a similar motor with a 750 Mighty Demon and I get 10mpg on a good day.