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Old 09-25-2014, 12:06 PM   #2
flatjack9
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Join Date: May 2010
Location: Oshkosh, Wi
Posts: 4,608
Default Re: vacuum advance disabled

Quote:
Originally Posted by 36tbird View Post
Besides there not being a port available on the 3x2 set up, is it not a factor that with more than one carb on a f/h there is not adequate vacuum to operate advance or brake? Installing one of Bubba's Chevy distributors on my 8BA I got an Accel adjustable advance can for it so that it can be set as low as possible. I have yet to get the can on it, but seems like there was discussion about that a while back. (I need to get the can on there because the thing runs great with Bubba's dizzy on there but I only get about 11 mpg.)

PS, I added a plate with a vacuum port under the center carb to have a source available.
The low vacuum signal relates to the Ford Loadamatic distributor that measures ventureivacuum. The number of carbs is not going to affect manifold vacuum.
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