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Old 11-15-2012, 03:22 PM
oldbogie oldbogie is online now
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Originally Posted by gearheadslife View Post
you don't off hand know the intake port CC of the gmpp fastburn alum.. would you?
GM says they are 210 ccs, the ones I've touched measured 205. Either way these are big port heads so on a 350 they will like to wind up more RPMs to get the port velocity up to where they have enough velocity to ram feed the cylinder.

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