Inliners International Forums General Discussion Engines Vacuum Questions - 292 with Multi-Carbs

Also, check out the Tech Tips page. Pat Smith has a good article on setting up the B's and Tom Langdon writes about manifold heat. You might also consider disabling the idle circuits in the end carbs, GM Tri-Power and J2 setups went so far as to seal the butterflies at idle on the secondary carbs with Glyptol or the like.