just bought a mustang runs funny
picked up 87 mustang 5.0 5 speed the body isnt the greatest but it runs good, sorta. it idles fine and drives good but when i floor it the car will take off but once it hits about 3500 rpm it falls right on its face. Let off the gas a bit and it picks right back up. Only messed with it for a few minutes so as far as i know i could be anything. The exhaust stinks bad like old gas so im hoping to get it out and put fresh in it will take care of it. any other suggestions?