Originally posted by Mean buzzen half dozen A.K.A. Hank:
Just curious why you are only porting the exhaust side?
I would say,you will make more power by porting the intake port over the exhaust.
<<< Well the intake outflows the exhaust by > 20% from the numbers I have seen I think GM did this to implement passive EGR. The intake flows over 280cfm ! Which is lots - An AFR 227cc head for a SBC flows like 270 cfm (last time I checked) and thats one of the best 23 deg heads out there.
I would love to install the 4200 into my 69 Camaro,but I am stuck for now w/my 250.I like the nastalga engine that it came with.
I would also like to see that engine installed in the Chevy Colorado or GMC equivilent
MBHD
