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Yes, you're close. We made 700hp at Comp Cams on 93 octane with 446 inches in 08 using Modern Cylinder Head ported SR's. 370cfm if memory serves correct. It was also 12:1 CR.



Is that number from CNC porting or hand porting Do any guys besides mine hand port anymore I just always here about cnc porting now.
Has hand porting become an old school art