i have 94 mustang convirtible v6 that has a random multible cylinder mis-fire i drove this car for about a year this way because i couldn't figure out what was causing the problems. i have replaced the entire top end, have even compression on every cylinder, replaced the engine computer, cam and crank positioning sensors, coil pak, plugs, wires, throttle posi. sensor, fuel pump, pressure regulator, injectors, all new filters, and mass air flow sensor.

the only upgrades to my car currently is a cold air induction kit by bbk. if any one has any ideas on what else could be wrong i would appriciate your help. also i have found a t-bird that has been wrecked i was thinking about getting the motor from. i is a 94 3.8l superchared engine what would i take to put the superchager on my car?

 

after replacing everything it still mis-fires?