Along the same lines... I just put a H/W on my 52 and do not know where to hook up the vacuum advance. From what I understand the vacuum port on the exhaust manifold is for the vacuum wipers. Mine have been converted to electric so I plugged that port. I am picking up no sign of vacuum on any of the other ports on the carbuerator at idle and when giving it throttle. What gives?

Tony maybe this is the answer for you... grab a vacuum gauge (under $20) and see which ports gives you vacuum on the carb. Looks like the choke line question has been answered.