We're ready to install the new turbo 350 and freshly built 327. We have a 4778 holley DP carb on a Edlebrock air gap manifold. The carb has 1 large vacuum port and 1 small port. The manifold has one port. We're hooking up the power brake booster to the port on the manifold,and the PCV to the large port on the carb. Can we tee the line and hook both the distributor and the transmission modulator to the remaining small port on the carb or where do we hook the dist and modulator to? Thanks, Dennis

There should be a port for the distributor off the primary metering block on the left side of the carb. Run your distributor off that port since it gets vacuum as the RPM's rise. The trans Modulator can be hooked to the small port at the base of the Carburetor towards the front. It has constant vacuum.

the best place to hook the modulator up is right on the manifold.. scavenge the junkyard for a stock "T" fitting to allow you to hook it up there using the stock steel line (if you have it) and as little rubber line as possible. of course, since you have a Holley carb, you might have some clearance "issues" getting to that port on the manifold, but Edelbrock sells a low profile fitting just for that, or a carb spacer can be added to get the clearance you need- and there are even spacers with a vacuum port drilled into them.
hook the power brakes up to the big fitting on the carb, with another "T" fitting to also run to the PCV valve.
that's pretty close to the say the factory did it, and who can argue with their wisdom?