ok so about 3 weeks ago my stang with 3.8 starting falling on its face after about 5 minutes of driving i can turn it off leave it for a few and it starts and runs fine again for 5 minutes then just acts like it has a bad misfire... couple mionths prior to this i put a thrush exhaust on it cuz its always been straight pipe, ok so the only code i ever get is p0190, i changed the fuel pump, filter, dpfe sensor, coil pack, and plugs, i read maybe injectors so i pulled upper intake off couple night ago and sprayed them with carb cleaner put them back in, while taking ui off one of the bolts was stripped so i unhooked batter completely and tried welding a socket to it, didnt help... so i grounded it off and lifted intake over it, and unscrewed it, got it all put back together now if seems as if its running on 1 cylinder, u can hold it to ground and it does nothing, motor is running rough shaking real bad, any ideas, i know its long but wanted to get if all out of what ive did