Give some consideration into stepping up to a 2.250 intake valve when you send them out. I ported the set I am putting on a 505 and they are flowing great but I want to see how close to 400 cfm I can get them to. The 440-1 heads get a weight break as the B1 heads do not so I’m curious how far I can get them.
I have already decided to go there. Valves in hand..
