Maybe someone here can help... A friend of mine has a 2000 S10, 2.2L FlexFuel, M/T and it's having problems. What's happening is it has NO power above about 2500 RPMs, and the engine will only rev to about 4300. We've checked just about everything. Fuel pressure is at about 60# and has new filter, each cyl is 190#, Eveything looks ok in the computer, has new plugs/wires. Anyone have any ideas? It's driving us nuts...