I am going to recommend IMM/fabo member IQ 52,or fabo member RAMM here. They as well as MRL,do great work. The valve guide to spring retainer ,becomes a issue about .525-.530 lift with the stock 1.6 Magnum rocker.The extra 5 bones,is well worth it. Sounds like ,you are copying LX guys combo(a nice one..).Looks tiptop, otherwise.