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Crap !
More modding of one exhaust to compare to the (now decoked) standard port and I have to come to the conclusion that I got too far ...
I think I got too wide.
Or maybe the kind of beak before the guide got flow away from this tricky part ...
Ho well, you live and learn ...
On the plus side, the polishing of exhaust and chamber should make the engine run cooler and allow for a slightly increased compression ratio.
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