Edelbrock, speemaster or promaxx heads

What's the diff on the TF rockers? I thought they took a standard dimension rocker with no special offset, they just need to be able to clear a 1.550" dia spring? The PRW rockers that were in the pics on IMM's facechat site supposedly work. I dont' think many would try to run stock stamped rockers on $2000 heads
Ugh! Yup, I was thinking Victor heads.
These have a set up from Harland Sharp that are $77 more expensive than standard heads roller rockers. No big deal right!

But OH! Many do run stamp steel stock rockers on there $2000 heads! In deed they do!