I was wandering what the differance is in using 1.52 and 1.6 roller rocker arms. Will using the 1.6 rockers result in any extra power or cause more valvetrain wear? Also will the 1.6 rockers change idle charictoristics at all?
Which ratio would result in the most power for a 40 over 350 with a .470 lift 270 duration cam?