Jerry;

#1. Choke only 1 carb. Usualy the rear as the cable reaches it best. No electric conversion I know of for the Rodchester although one can be adapted. H/W's with electric choke works.

#2. You describe a lean condition. Check for vacumn leak. Get 2 jets of the same size to balance the fuel delivery. Minimum size 47, Max at 58's. Measure both accelerator pump rods first and note just in case. Lengthen accelerator pump links by straightning out in 1/16" increments. Hesitation should start to diminish.

#3. Prefer exhaust heat. 3/8" steel tube does work. Inverted flair fittings don't leak.

#4. I would post photos but I don't know how!

#5. Use 1/4" if room. I use 3/16". Cut plate using gasket as pattern. Tap both sides to heat both chambers of the intake. Seal with red rtv.

#6. Pressure is fine from stock pump and 5/16 fuel line. 4 to 6 lbs works.

47 Fleetmaster, Hotrod 6, 5 Speed
50 Sedan Delivery, 327, 5 Speed