here is my setup

Vortec heads

bored .40 over 4 bolt block

flat tops, 10.3 compression

comp cams vacu springs or whatever they call them

comp cams 292 h cam flat tappet, 2500-6500 rpm, .501 lift, 292 advertised duration, 244 duration at 0.50, 110 lobe seperation

comps cams valve locks, retainers

studs, guideplates, magnum pushrods

im going to pick up some comp cams roller rockers

should i get the magnum roller rockers or the pro magnums? are the pro magnums that much better? also should i get 1.5 or 1.6? thanks