I would just run a hydraulic flat tappet cam if I were you. It should save you some cash and some headache. I have the biggest thumpr flat tappet comp makes for the 351w in my stroker. I have yet to run it, but I bought the kit that came with springs, locks, retainers, valve seals, timing set, and lifters. Great kit, just do some research on break in for a flat tappet, do it right and you'll never have problems with it.