Contour Enthusiasts Group Archives Forums General General MPG? 4cyl vs, 6 cyl

I am getting 30-31 mpg on 50% hwy and 50% in-town driving. That is tracking over the last 3 tanks of Mobil middle grade, with Lucas additive. That is with KKM intake, SHO-y pipe, SVT exhaust w/ mag resonator. This is an increase of 8 mpg from the stock car I started with. Nice suprise!