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Old 09-09-2006, 09:12 PM
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piper_chuck
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Default RE: O.S. .81 VR-M Marine
I've run the .67 version of the OPS. Ran great until it threw the rod, which also took out the piston and sleeve. The .80 size is also supposed to be good. The CMB that Jerry mentioned would give more power, but it all depends what you want to do.
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