Roller rockers
I don't think the Crane ductile iron rockers are really cost effective. They are like 340 bucks from Summit. I don't really give a rat's butt how little somebody thinks a roller tip will add, for that kinda money, I'm goin roller. I actually like the Pro Comp pieces. They are nice and as long as you don't over torque the adjusters like a dumbass, you won't have a problem. I wouldn't recommend them on a 600 HP engine, but for most they will be fine.