Around $1500.
He got RHS mixed up with RPM. He had it in his head that the heads brian sells were Aluminum. I set him straight. Given that a pair of RHS's from IMM, are around the same dollars as a pair of RPMs from summit, and he doesn't want to shag about tweaking a new set of heads, The RHS would have to win hands down. What would it cost to make a new pair of RPM's out perform a pair of OOTB RHS's?
I assume the eddies come with 3/8 valve stems? I'm put off the edelbrock heads by what people here have written about what theirs were like OOTB. Pretty horrible casting, and even sand still coming out of them.
The heads Brian sells must have a good rep for a reason.