Idea for a virtual and true ENGINEMASTERS CHALLENGE
Opening it up to anything can invite Victor & W9 heads which is not a budget option for most. So it yourself’ers can claim a cheap head, used parts and port themselves. I don’t think that is in the spirt of things.
I think, IMO, the idea here is just a spotted competition among FABO members doing a build inexpensively using common parts readily available.
IF …. IF ….. RAMM decided to allow after market heads, IMO, they should be run as close to a OOTB condition as possible. I could see a upgraded valve job done as the only mod since many people will take the heads to be checked out and a upgraded valve job on top of any correction fixes is a reasonable expenditure.