Yep- - - - -I had a few sneaky ways to bypass the carburetor and give the engine more air. The engine wouldn't idle- - - -way too lean- - - -but it was easy to jet the carb rich enough to compensate for the air leaks at speed. One trick was to drill holes in the bottom of the intake runners so they could suck up air out of the crankcase. Of course, we also used a little oil that way, but locating the holes as high as possible on the manifold plenum helped. Some guys put flat washers between the carb base and the intake, but the tech guys learned to use a feeler gauge and catch that trick. My engines had to have the intake manifold removed to find my modifications, and that didn't happen very often.
A bellcrank and heim joints can link three of those Harley carbs together, and if the heim joints have turnbuckle type threads the synchronization is pretty simple.
Jerry
