Advice on my "stock" 340 build

mad dog said
Hope everyone had a great xmas, ive been thinking about sending my carb out for a restoration for this stock 340 build, i have 2 to choose from and not sure which one would be better
1. 1969 4611S Which is the 69 4-speed carb...or
2. 1970 4937S Which is auto w/ecs.
any help would be appreciated, right now im thinking about these 2 and not buying a brand new carb, your thoughts?

Also im thinking about taking RRR advice and use an OEM ignition system, thinking about the 72-73 electronic unit, maybe our resident distributor guru can set me up with a whole kit, distributor, harness,ballast resistor and a ECU (what color box ?)

Thanks for reading and the help, all suggestions are welcome...Rich

Rebuild the 4937s carb. I have never run a new carb. The "70" 340 carb should work fine for your combination. I like the OEM electronic ignition. Any good old box will work to 6,000 rpm. Some of the orange boxes were bad and the chrome boxes are good forever. I'd get a complete setup from Halifax hops. You can also run any 72-73 electronic 340 distributor or the Direct connection electronic # P3690430 distributor.