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Posted by Kaegi [24.16.253.154] on Wednesday, April 11, 2012 at 17:02:00 :
In Reply to: Re: got poly running posted by Glen Id [72.173.87.91] on Wednesday, April 11, 2012 at 16:26:20 :
so it uses port vacuum not manifold vacuum. I went and looked at my 61 slant six and it also uses port vacuum. manifold vacuum is the vacuum created beneath the throttle plates. port vacuum is above the throttle plates. some distributors are set up to run one or the other or none.