Port Cross Section and Torque Peak RPM

I bought mine from someone on here. I am no expert on this stuff but I think some work on it. It seemed to be gasket matched a little ways in and pretty much perfectly matched the gasket.

yellow rose said

Well, that’s a bit hard to measure then. Bummer is I just sold a virgin SD or I could have measured mine for you. The other one I have is ported.

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