I have a '90 3.0 that I just did the following to: installed a new carb, put on a Petronix Ignitor II and Flamethrower coil, new set of plugs, wires, cap+rotor. It was timed to 8 deg. BTC and runs great on the muffs. After a run at about 3500 RPM she starts missing when I come back on the...