MPG experiment....1976 Dart Lite

Heres my mileage timeline from the .org board. I didn't go all out on it yet but some nice gains are to be made. Whats your timing and Vacuum looking like? Also I agree, I wouldn't go over 2 1/2" on your exhaust. Anything bigger is only going to hinder your economy.

http://www.slantsix.org/forum/viewtopic.php?t=29248&highlight=