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Mark Ugrich · 02-20-2020, 11:02 PM

Look up the allowed combustion chamber and intake and exhaust runner volumes in the classification guide for the Pontiac engine you want to use. Then compare the volumes to what the head has in unmodified form.

02-20-2020, 11:02 PM	#4
Mark Ugrich Member Join Date: May 2011 Location: Auburndale,Florida Posts: 201 Likes: 20 Liked 57 Times in 32 Posts	Re: SS Head Porting Rules ? Look up the allowed combustion chamber and intake and exhaust runner volumes in the classification guide for the Pontiac engine you want to use. Then compare the volumes to what the head has in unmodified form.