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Posted by George (AB) on Tuesday, August 11, 2009 at 06:42:12 :
In Reply to: Re: OT-413 ind. head question posted by Dave Royal on Monday, August 10, 2009 at 22:54:14 :
Just curious,,, whats the advantage of 400 heads?? I found my stock 413 way torqueyer than my 400,, Bigger valves, higher compression???