[bracketchev1221]

On my Chevelle I use the Cloyes 3510TX9. On the small block in the Nova which is a street car I went with the Street True roller.

 

[bracketchev1221]

Well I don't know if that is too terrible. To me that is the main reason for degreeing the cam. To check the parts. Granted, the parts are expected to be right on but the cheaper ones do have these tolerances. Even my street chain in the Nova, straight up was 1.5 advanced. So that is where I left it. My Chevelle chain was like 1/2 degree advanced. So that is where that wound up. I've found that very rarely does anyone play with cam advancing/retarding on an average build. As long as straight up is achievable you are good to go. For a high hp build, a good chain should be used anyway and the tolerances are much tighter.

 

[bracketchev1221]

What happens to cam timing when the chain stretches?

It retards.

 

[bracketchev1221]

No not really. Different chains stretch at different rates. Also depends on use. That's why if it's a little advanced at install, it won't hurt anything.