Posted by Oregon Tractor Jack on December 31, 2021 at 07:38:31 from (71.63.212.156):
In Reply to: SUPER M posted by Glen in Iowa on December 31, 2021 at 05:02:51:
That is a difficult question to answer with a number. After putting in fire crater pistons in one of my H's I will say it was a lot healthier. I would expect to get one point higher compression with them. Its enough to notice a difference but still run pump gas. If you really want to bump the compression you can have custom piston cut to what ever compression you want. I have done that that for two of my pullers, fun until you have to buy 110 octane race gas.
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