I have had my 95 Formula for about 2 months now. The previous owner had a Jasper reman engine put in it, which now has about 12k miles.

I get really crappy gas milage. I estimate it is somewhere around 20-21 mpg average with about 90% of my driving done with the cruise control at 70 mph (on the highway, of course).

The car is a real brute gassing it from a standtill, but tends to run out of steam at higher speeds. Also, I am tach'ing around 2100 rpms at 70 mph. My mom used to have a 95 Trans Am that if I recall correctly, would tach a bit lower at that speed.

I suspect that perhaps someone has done a little gearing on the rear end before I got it, but I'm not certain. Opinions, please.

Thanks.

I really cant tell you if it has been regeared without knowing if its an manual or auto. An auto can just have a stall converter. If its an M6 then 2100 is pretty high. I'd agree with you that it has been regeared. If its an auto its harder to tell.

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Ack.. I suppose I should have mentioned that it is an auto.

Sounds like it's geared just right. 2100rpm =70mph. Theoretically if your car had enough power to pull top gear to 6300rpm, you'd be going 210mph. Sounds like it's geared pretty high to me.

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1994 Z28 Black heads/cam th350 drag car
1995 Z28 Teal 'Vert bolt-ons 6-speed cruiser

Cool. Thanks for the info.