"NEED" anti pump up lifter??? Come on, RRR, you've been around the block before!! LOL. :poke: I used factory valve train, yes stamped steel rockers, pushrods, and a normal hyd lifter with a hyd flat tappet cam and hit 7k more than once in my 340. I shifted it at 6k because it ran the best ET there. That engine never had valve train/cam failure after several years. Had it in a Demon, a Dart Sport, D100, and lastly a Duster. Now, your recommendations are good ones, but I don't know if "need" is in the word in order... :D