Author Topic: Dolmar 7900 Porting Info  (Read 14933 times)

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Re: Dolmar 7900 Porting Info
« Reply #50 on: June 30, 2014, 11:29:58 am »
Never checked but there has to be port timing difference IMO.  The stock 681's I ran were so strong and it cant be because of just 1mm more stroke. Just my guess.

 

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