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Discussion Starter #5
I seem to remember Greg going 9.98 on motor only a couple of years back.Nearly a second better. Maybe a bit more put in than just the extra 43 cubes?
 

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Ported heads, more cam, a lot more compression...plus I believe the 9 was run in mineshaft air, I'm not sure if he ever ran the 514 on motor in really good air. But for sure, the 557 combo seemed to really pick up quite a bit for the amount of hardware changed.
 
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