I just dropped everything in and was out making laps around the block and all of a sudden it started vibrating and its blowing the fuel rail off the back left injector and its making a loud popping noise and kind of a ticking noise also, it seems to me it is a timing issue but it was running like a champ for about an hour. Any ideas or help on fixing this.

 

its not popping from the exaust its making the popping noise from the inside of the intake thought id make that clear. I put in the isky cam and springs also in the LQ4.

 

maybe you dropped a valve, pop off the valve covers real quick and take a look....

 

Nailed it down the number 1 exaust valve rocker was loose tightend it up and runs great now thanks alot. Burn out videos tommorow

 

Sweet glad you figured it out, its always the simple stuff.

 

did you put loctite on those bolts?