J-SMITH69

a stock 5.0 gets about 26mpg on the highway. with the grandma 2.73 rear end gears


stock about 14.8
with 4.10 gears high 13s.

huge difference :/

accordepicenter

Hahaha yea the late 80s early 90s notchback mustangs are tough, the newer ---- breaks driveline parts. Somebody in here needs to do a HMT V8TT

AgentMurdoc

sell that piece of crap, I'll give you 500 cash

mahcivic

my car has been out of comission since february man. dont complain too much

Donald125

if you`ve changed it last time y didn`t u use arp already..

or did u reuse stock head bolt over and over again :P

88crxSi

are you using a z6 HG? try a y8 (they're metal)

projekteg

why did you let him make 2 lean passes :P for the money you've prolly spent for his time and your gh, you could have got a wb and learned how to tune it yourself. those are some pretty low numbers, kind of makes me think your tuner doesn't have a clue :P

90turbohatch

Just keep at it man! I've dumped so much money into my car also and there is always something wrong with it. It seems everytime I fix something, something else goes wrong.
Good luck