I am curious about the flow numbers of a GS1100 head... I have a 1428 motored conversion big tire that goes 9.0's with O/S valves and .348 lift Webs. What kind of flow numbers would or should I assume I have right now and what do I need to get to to say go in the mid 8's
I understand that this is not near enough information, but, hypothetically speaking, what would be a good way for me to go I am not ruling out new cams, but I would assume that I need to get more flow through the portsa as well....