Link
http://www.racingjunk.com/gallery/profile/172321/55596 on my racingjunk profile. Shaft rockers are the way to go. instead of being on a "stud" they “bolt” directly to the head and have a shaft go through the rocker. much stronger, no flex with high spring pressure, no guide plates needed, and no aggravating stud girdle needed.
Jesel and T&D are the most popular, but I bought the crane set because they were on sale. I liked them and they worked well even though I was way over thier max spring pressure rating of 950lb. the shims we had to use (go under the mount that the bolt goes through into the head) was used to get the rockers at the correct level to match the top of the valve. Once on, you never have to bother with again. It was just aggravating to have to shim so much. Check out the crane site. it has some good info and pics that may help.
http://www.cranecams.com/index.php?s...lvl=4&prt=2147
this is something you may want to add to your next rebuild. more stable than stud rockers, but your not gonna see any faster times just by changing rockers. unless your breaking 'em like i was.
Rabbit