Hi all, Iknow this is probably not H.A.M.B. friendly so dont flog me to badly. I did do a search but didnt find any real information. The engine is a Chrysler 440 ,Indy heads ,roller cam, gear drive,roller rockers, 470 cu.in. cant go bigger on cu.in. pretty much at that combinations limit. We need more RPM, would roller cam bearings be worth the cost and hassel? I have been told it would probably pick up 3-400 rpm maybe? comments and opinions please Thanks.