AChotrod

iTrader: (17)

Its the rockers not openening or closeing the valves causing the fuel to load up in the cylinder causing the back fire. Could also be a lean tip in condition in your tune or possibly a bad MAF. My guess is the rockers were set wrong.

BizZzatch350

iTrader: (33)

When my rockers were set wrong, the car would spit flames from the intake and barley run.

sepno77

iTrader: (5)

Finally resolved and regained back its long lost power. After taking on and off the opti about 4 times I realized that I was dead on every time. I know my eyes are bad but no way I was not installing it right. Turns out that we had a wire crossed that was causing the backfire from the intake. So we fixed that and the bent pushrod and celebrated w/ a good pizza dinner once we heard that cam kicking again. 355 503 just sounds so sexy. Thanks all ya for you help.