I came across some posts on other Mopar boards about solid roller lifter that MRL Performance came out with maybe a year ago. Anyone here use them in big blocks, in particular blocks with unbushed lifter bores?

MRL also offers two different types, one with a standard .750 wheel and an upgrade that has a .815". Is there really a performance benefit to a larger wheel or is it just better durability by spreading the load out a little more?