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Old March 28th, 2014, 12:54 PM   #10
kxpower?
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Name: Jesse
Location: Maryville, TN
Join Date: Nov 2012

Motorcycle(s): Ugly 89 frankenstien special ex250, and the "Zooks" : 1982 GS450 and 1979 GS1000

Posts: 327
Quote:
Originally Posted by misfitsailor View Post
Instead of high compression, have the head ported and polished. The valves are a great idea. You will be surprised at the difference it makes when your engine breathes it's best. In engines that I have built in the past, head work has always made the biggest difference in real-world power output.
Port/polish is the main goal here, my thinking is I could raise compression too without a lot of effort, seeing as these things are happy with 87 stock I figure there's plenty of room to safely raise the CR if I'm willing to run premium.
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