B-block cylinder heads?

Exactly, thats why the cc's of the runner are smaller and this brings up the velocity. The heads that I'm talking about flow in the area of 335 cfm's when gasket matched and bowl blended with a 2.08 intake valve as the port has been redesigned, I ended up at 215 cc's intake port volume which is just 5 more cc's that the eddy's and flow much better with less work. The heads flow over 300 cfm's out of the box and are a very good looking cylinder head from my stand point, no extra slag or clumps in the ports and they are casted vary close to the gasket so not much work is needed. Mine were within .015-.020 of matching, most would say thats close enough, but I like all the advantages that I can get. The bowls are similar to the 346,452 heads with a rasied roof line and better short turn. They are a very good alternitive to aluminum heads and cost less. The intake would have to be a Mopar or the Indy and both are available, the mopar is cheaper and looks as good. I believe that Mopar has there's casted by Weiand, which is owned by Comp Cams, I may stand corrected.