Aight guys, we just aquired a new to us 07 Harley Davidson with 50,000 miles on the clock and the supercharged 5.4L. I'm assuming these are prone to the spark plug problems the non supercharged motors have problems with, am I correct? Are there any tips or tricks, maybe tech folders like we have for the 6.0L Diesel. Also we need to find the key code. I've been told Ford stamps it somewhere behind the glove box on my Superduty but what about the F150.
Also, we love screwing with stuff and are already talking about some upgrades, what pulleys are safe for everyday driving, headers are already planned for the near future, any other must have mods?