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Originally Posted by dynomatt
Bill,
Flow figures were done at 10" of water, not your traditional 28" (I'm lead to believe).
We used the middle port on both.
You should be able to get the same readings I would have thought.
Can your bench be calibrated at 10"? Maybe give that a shot?
Matt
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Matt,
Thanks! The SF-600 allows for testing at any number of inches of water, so I'll be able to test at 10" as well as 28". I've talked to the folks at SuperFlow and I think maybe a line on the exhaust side of the machine got pinched during shipping, just have to pop the back off and look around a bit 
Any chance you could check out the ports for cylinder #1 (front cylinder on the passenger's side on USDM EG33s)? I measured the distance from the exhaust valve stems to the exhaust flange and the distance for one of the exhaust valves for this cylinder is ~1 inch longer than the other. The other two cylinders for this head have exhaust path lengths fairly equal between their two exhaust valves.
-Bill
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