I'll refrain from saying anything nasty but if the person who started this thread wants to know about small block heads give Ryan j. at shadydell speed shop a call,he's the "best" in the business when it come to small block heads..period!!!
I don't know why you're knockin on Brian @ IMM. I bet he knows just as much as those guys at shady dell...Got my RHS heads from brian at IMM...I am very happy with them..:)