vacuum advance disabled

[36tbird]

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.

[flatjack9]

Originally Posted by 36tbird

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.