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Originally Posted by Jime
The Power valve opens for top end and joins the upper and lower areas effectively reducing the runner length. What I have done is remove the power valve plus the remaining metal that joins the upper and lower. The metal I removed is probably 3 times the area of the power valve butterfly and completly opens that area completely so there is no division at all.
This pic sort of shows how the length of the runners is lengthened and shortened by the power valve operation.
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Very well done, Jime!
This is one of the best self mods with pics and diagrams I've seen in a long while.
Thanks for being the pioneer!
