@mbaird - Is that cam a reground stock core?
I'm curious what valve springs Oregon spec'd for that cam. I recently ended up going about a step larger for my 408 build (231/236, .544/.555 on a 110). When I called Oregon about a potential regrind, Ken said he wouldn't go past 110 lbs seat and 300 open valve spring pressures. That seemed soft for a performance cam, so I ended up going with a new SADI core vs a regrind just to be safe.