Thanks OFFICIAL, I suspect the cam should go as well.
Ran into this beautiful piece of information from MRL on the subject:
"We did a 408 stroker last year with the XE275HL cam, 1.6 rockers and the RHS heads w/1.92/1.625 valve and did no port work at all, not even a cleanup, and it made 465hp 520tq."
RHS pump gas 360
408 xe274