Posted by mik appel [71.193.237.10] on Thursday, February 04, 2010 at 20:12:15 :
In Reply to: Re: 413 question posted by Gordon Maney [208.126.206.67] on Thursday, February 04, 2010 at 20:05:39 :
I believe the rv ones had smaller valves and higher compression something like 13 to 1
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