Caereful quoting flow number from one place to another. I know for a fact, at least compared on my bench, Self's bench is 25+cfm happy. Does it matter? Sorta. If they sell "flow" numbers, then they are playing a game of deception, to have you go there vs somewhere else, and its really frustrating trying to compete with places like that. I have to localy, and its hard to convince guys. I guess, when my heads that flow 20 cfm less, but make more power and the car is faster by many tenths comparitively, who's heads would you rather have? Ones that a sheet says they flow 420, or some others, that have a sheet that say 385 but run faster, and make more power?
Frank
Advanced Performance
www.get-ap.com