ProComp/Speedmaster aluminum heads

Yeah, pro maxx would outflow out of the box. Didn't think it was any different when somebody wants to rebuild a 318 you suggesting them getting a 360 magnum - - on a 318 thread.... LOL. I'll take the name Pro Maxx and leave..... :D :D :poke:
It's not like that at all, it's just not a good comparison neither in price or performance.. It seems the Edelbrocks are the closest Apples to Apples comparison in the bang for buck Department?
While I'm naturally Gathering information for my wants, I'm trying to keep this about the SM heads...