Rocker ?
Rocker ? I'm goin to get some PRC LS6 heads soon, i was wonderin how much of a gain i would get goin from .525 to around .550 lift, or should i just save the money for something else.
I knew where you were coming from man. 
Take the same several hundred $$$ on the rockers and buy a cam. That would really make the heads worth while. Cams are easier to change than heads too. If you can do the heads, you can do the cam whenever you're ready.
...ASA