About seven months ago I replaced the engine in my 1989 Toyota Supra Turbo, because the old engine had a blown head gasket. But now when I try to drive it on the street the car will not go over 30mph. The tach revs up but the car dosent speed up. Even changing the gears dose'nt help. It also smokes and idles rough or stalls out when the throttle is released. I dont have a clue as to what the problem could be. Do you have any suggestions?
walter
