They are like $755.00 for cnc ported heads with flow numbers that rival some of the best ported ls3 heads out there. I have sen pro comps before for other engines and there flow num,ber were crap. Anyone used them before or what are ther issues. The pisture in theree website shows them as a cathederal port but they say the are ls3 heads.

 

I believe its a typo. I think its a cathedrail port. It was in a Hot Rod magizine head comparison. (Dec 2010)

 

I can not even find it on their site.