Originally Posted by billhendren
How many C.C. in the int runner? 420 doesn't mean anything without knowing the runner size.Bill
Don't know Bill,
I didn't ask when i called, but Brodix claims 383 cfm flow with the same fully CNC'ed and flowed on their bench. but as someone mentioned earlier self might be falsely stating the flow #'s. They do use a 3/8" stud between to intake runners, possibly upping the flow, but 35 CFM seems a bit much to gain with with only 1/16" gain per runner around the head bolt.
JMO
PS, PWMAX, i like that Happy flow bench
Zip.