I just put a brand new GT-40 "340" hp crate motor in my car, bought the timing chain cover, crank dampner, and whatever else kit, i finished the motor with ALL new parts Nothing fell in the intake, as the ford tech guy keept insisting. I now know this, because after talking to him, I ran the car and disconnected and replaced one wire at a time and it still makes a bang out the intake(meaning the valve is open), and the car still banged with every cylinder disconnected at different times, so unless more than one thing fell in, which I was persistant in making sure not one thing did, the cam timing is off. The rockers on this motor look stock and all look and feel like they were installed correctly. Is my only option to take off all of the accessories and check the timing chain? A mechanic suggested that he put shims on all of the rockers, would this have any effect, or could this be a bad idea? He also said that it may be too high of an octane(93) but we have had the timing from 10-20 degrees and nothing..............
AHHHHHHHHHHHHHHHHHHHH
Please help, and how do you change the cam timing with the chain if it is off by a link or two...

AHHHHHHHHHHHHHHHHHHHH
Please help, and how do you change the cam timing with the chain if it is off by a link or two...
