Ports.
I was reviewing Megadan's photos of the ports on the Hawk, and he is right - the ports aren't all that great. Especially on the exhaust side. I think, if you are considering doing port work, that you should buy another cylinder head to experiment with, but there are definite horsepower advantages lurking in those passages. Just don't get carried away. Smooth them up and open up a little in the neighborhood of the valve guides. Don't get too carried away on hogging out metal on the intake side - we want to maintain velocity in the intake stream. It is always easier to grind a little more than it is to replace metal from over-zealous application of the grinder!...ARH
Last edited by Ariel Red Hunter; 08-30-2017 at 04:35 PM.
Reason: spell correction
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