5.4 3v starts on first hit. no issues starting the motor except 1 and 2 plug wires reversed. i didn't check it, because i didn't expect it to start so easily. i can't make dvd videos. open headers rocks. driver's side O2 sensor not connected yet. i have to wait for exhaust shop. throttle response is excellent. idle quality is as good as 4.6 99 percent finished with install. still have converter bolts,hydraulics,plumbing, and serpentine belt. guesses at fuel injection TDC timing are correct.