Rhs 360x

So are people saying that a J head has more meat in the spring pad?

So are people saying that you can't stick a .020 longer .100+chevy valve in them with pop up retainers and or pop keepers and run .600 lift?

I think a more accurate statement would be -if you wanna run the magnum pedestal rockers expect the geometry to 'get worse' when going over .550lift


The geometry on any rocker stand head is based on stock specs=stock .450ish lift, after that you're on your own- hence brodix,race w2, etc all take adjustable rocker stands.
OH AND the fact that indy uses big block arms on their small block heads for as stated=better geometry.