is there a certain valve clearence needed for these rockers? any "how to's
" and tips would be awesome too.

 

depends on what kind of lifters you have I say 1/4 turn of preload, seams to work good for me.

 

i think im going to just run stockers...i've heard too much bad **** about the comp R's. and you say 1/4 turn of preload....to get that do you just tighten the lock nut till its tight against the rocker then another 1/4 turn or what...never heard of that before. thanks

 

This should help http://shbox.com/1/4th_gen_tech2.html#adjust_valves

Also remember if you have aftermarket rocker arm studs, the thread count may be off. So a 1/4 turn on the stockers might only be a 1/8 turn on the aftermarket ones