Quote:

Quote:

No dought about that. But Dave Koffel told me a B1 Orig. cnc ported had a 5.625 long 320cc intake port. I ask for my engine analyzer plus program.


I don't think the -1 is close outta the box. The B1's are usually 385 unported. That's what my flow sheets say.




I thought he meant port volume cc's not cfm air flow.