Not Ranked
By the way we have high performance engines not racing engines. I played around at a shop this weekend where a guy had a drag boat. Camshaft had .995" lift, 950lb open pressure, solid rollers, rebuilt engine every 2 season or about 2 hours run time. Beleive it or not he used castrol 10W30 gtx between races. $11.00 at Walmart, LOL!
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