Stock stroke 360 on the dyno

Are you saying that the EQ and the RHS heads are the same except for the intake manifold drilling? 'Cause I have both heads here in the shop and I could might disagree.
No, though I probably wasn’t very clear on it considering your post.
Being that you have both heads in the shop and dealt with them before, do ether or both of the heads have the ability under the valve cover to be used as a Magnum or LA head?

This is what I was remembering. If I’m at fault, let me know!