Thanks again! That is exactly the pre existing plan on the intake side with some 5/16 stem valves. I’m debating if I should have hardened seats installed to bring the exhaust valve height back up or if if should go with a larger exhaust valve, I haven’t got to talk to my machinist about that detail yet, but I’m thinking a 1.65 would probably do it. I’ll be cheating a little leaded fuel into the mix to help the seats live, anyway. I’m going to be running a .533 lift with [email protected] solid. FWIW, they’ve been running a lot of four angle valve jobs on the performance stuff.