Engine Performance Vs Mileage....

[89gtsleeper]

88 notch, full weight with sub frames and stereo, 4.10 gears, aod, vortech v-1, 42 lb injectors, edelbrock heads... Literally never drive highway and most drives are under 5 miles for me. Car doesn't even get warmed up all the way most of the time. Averaging about 15 mpg right now.

 

[Gearbanger 101]

Getting about 20mpg out of my 3.73 geared, HCI 331 stroker in my Coupe (I do drive like a little old man though). I'll let you know how much better, or worse it gets now that the blower is installed after its tuned.