6'' lift w/ 35'' tires affect on MPG?

[fitz]

Keep in mind that once you start changing tire size and gear ratios unless you have your speedo calibrated your MPH will be off. This will lead to inaccurate calculations for your MPG's.

[Irish_Alley]

But an excuse for those speeding tickets lol

[beastie_3]

Only if ignorance was an excuse...

[beastie_3]

I have a 82 with 33 and 3.73 with the sm453, 350 that is put out like 350 to 400 and i get 16 on the high way as long as i keep my lead foot out of it, in town i get 12. i have change the card, the intake, cam, and exhaust.  i have a demon 625 card, a STRIP DOMINATOR INTAKE MANIFOLD, and MSD HEI coil and Mr Gasket Adjustable Vacuum Advance, MSD Ignition Module, Mr GasKet High Performance Spring and Weight. A Lunati Voodoo cam. My exhaust is 2" with 3' long glass packs, and a set of flow tech headers. My truck run great. I want to to a over drive unit on it sometime when i get 2000 for it.     

You have 2" exhaust on a 350 that puts out 350-400hp? Ummm....