Top End Limits!!??

[gtsr515]

I would say there's nothing wrong with your car, with 2.73 gears and a stock motor, when you hit 5th, that's overdrive and will excellerate more it just takes for ever, Remember top speed is indicative of total horsepower, TORQUE is what excellerates the car, get ya and exhaust system, a 3.73 gear.

A bone stock 88 notchback was tested in a 88 Road and Track magazine with 3.08 gears and topped out at if i remember right 143mph.

I also remember very well a comparison test tween and 86 LX 5-speed and an 86 IROC.......they 86 went 147mph, I ***** you not, maybe your fuel pump is getting errk, some of those early stangs only came with an 88LPH and Ive removed some that had 66LPH, I say tach the living bazeezes out of 4th gear, and really if you havent beat em buy 100 plus mph whats the point?

Have fun, also check and see if your throttle body blade open all the way at WOT...car off of coarse, also until I think 91-up had teflon coatings on the throttle blade to help gunk build up, how about your timing???????

Jay

Jay