ProComp/Speedmaster aluminum heads

He has no reason to lie to me. He build very high end motors that win races. I dont pay him for machine work, nor do i get kick backs from him.

I would put his hand port job against anyone's work. (Maybe @IQ52 could beat his numbers?)

Send him a set and find out?

I just went back and looked at our texts. He says over 320 is not an issue oit of the small block speedmaster heads.