Mopar R1 block

Considering mec roller or solid flat tappet.
How big would the gain be?
50-100hp?


Forgot you're doing W5 heads. Double extra cool. They take a ton of work but they will make power. Can't wait to see the results.

I'm on the fence about my next deal. I'm seriously leaning to a SFT and using a mushroom lifter. I don't mind running a solid roller but I don't think I need it, and the mushroom lifter will reduce lobe wear on a agressive lobe.