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I've got a few issues with my 1988 16' Edson.
I changed from an 18" aluminum prop to a 21" stainless.
WOT approx. 4000 rpm, valve were tapping and after
a short run at WOT lost power and bent a valve in the process.
I thought I had some cooling issues however temp at WOT was 140 degrees.
New...
