383/700r4/3.08........and 10.5MPG!!!!!!

[nightmare]

Originally Posted by smoky02

you also said that your tranny doesn't lock up, that takes alot away from you. And the higher gear ratio, would more than likely increase your mileage in town, but not out on the highway at all.

Hmmm. PATC's website states that you want your rpms to be at at least 2000 @ 70 mph. All the websites that have the calculators on them show that I should be turning ~ 1675 (so roughly 1700 rpms) with the lockup. If I'm only 200 rpms off, how much is that taking away? My guess is that with the 3.42's, it should be turning around 2100, which should be "optimal" for my setup to increase mpg.

So there's a possibility that my in town mpg could be more than my highway mpg? I don't see how that could happen.