my car is pissin me off. i need help to diagnose my problem. if there's any fellow rotorheads in the area that are willing to help out, it would be much appreciated. I have a problem that i thought was an exhaust manifold gasket leak. then i thought it was the intake manifold gasket leak. so after replacing all the intake manifold gasket, exhaust manifold gaskets, and all the fuel and vacuum lines, i still have the same problem. no power in the high rpm range, but the motor flows freely. the clutch grabs and is not slipping.