You need to check your piston to valve clearance with that much lift and duration. I'm running a 266/270 duration at .050 with .640 and .646 lift solid roller. I have extra deep valve reliefs cut into my pistons, don't remember how deep. I'm .014 in the hole on my pistons with .030 head gaskets. I have .1 on the intake valves and .15 on the exhaust. I think the recommended min on intake is .080 and exhaust is .100.
Best think to do is check it out or you just might be putting hole in a piston with a valve.