i have a completely stock 94 gt aode, and it has a couple of problems? first off, its vibrates slightly, but very bad right at or around 1000rpms. doesnt matter if its in park or drive. could this be my balancer? that seems to be a common problem with the 94-95s? if so? what are some signs that the vibration could be coming from my balancer, and if i were to look at it? will i be able to tell if it has gone bad or not? second, when i im out driving and i floor it. there is an excessive amount of white smoke? and right around 4500rpms it cuts out, almost as if it has some kind of rev limiter, doesnt seem normal? ive recently put new plugs, wires, rotor and cap, didnt help with any of my problems? do you think clogged injectors or a bad fuel filter could cause this?