Quote Originally Posted by Anthony Smith View Post
I run my comp cam with 512/512 on L76 springs and stock rockers, it is perfectly fine after 20k....
I know people do it....it's not something I would recommend though.

Just like myself running a stock timing chain with 20k miles on it...10k using LS6 springs, and 10k using 130# springs. I wouldn't recommend that to anyone.