Does anyone have info/pros/cons with using solid roller lifters vs. hydraulic? I have t&d adjustable rockers, comp cams pushrods for rollers,(8.2" I think) but haven't purchased a cam or lifters yet. I plan on using 212/212 or so and want to go solid rollers, is a billet cam req'd for this or can i use a comp. cam ductile roller . any info much appreciated