It's all going to depend on the condition of your main bearings. If there worn you would want to run a thicker oil to keep up pressure. I run 40wt. bucuse my bearing are a bit worn out. You don't want to go to thick or you may not get oil into the bearings or to thin becuse you won't get enough. My buddy snapped a billit BB crack in half becuse we built the motor for 50 racing and then he dumped 20/50 into it.
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71 basic C-10 350. The only option is the rust.No nothing on it, but thats all about to change. <A HREF="http://www.geocities.com/stevemau/slam33page.html?1004806705410
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