All my little problems have been corrected. New speedo gear corrected inaccurate reading. A new voltage regulator corrected charging problem (had a bad one out of the box from auto parts chain store). Filling the gas tank completely cured my presumed fuel gauge problem (have to fill well past the point where the fuel handle automatically clicks off).
New camshaft helped in numerous ways. Fuel consumption way down, looks like it is close to 20mpg. Tuning the weber carbs became easier. Exhaust noise is down.
Rerouted heater plumbing did not help the fuel boil problem, but made a cleaner look.
Fabricated a stronger bell-crank stand, which helped in weber tuning.