Quote Originally Posted by ceh383
So then, would the chain stretching retard the cam timing moving the power band up? After a few hard pulls how far off would the cam timing be?
As much as 8 degree's.
At it's worse it could mean 30 less hp.
One area I would like to mention is cam speed is different than crank speed.
My advice is always put the crank sprocket on "straight up" and try to adjust the cam timing.
In all the drag engines we build in SBC or BBC we will try and run a two piece timing chain cover or a belt drive and either advance or retard the timing to make the car go faster.
One idea is if you have a car that won't "hook -up" you can try and retard the timing to try and lessen the low end shock and make the engine pull harder up above.
Like I said before always make sure you have enough piston to valve clearance.