the inline six is a tough motor. it takes a nuclear explosion to kill one, and even then if you change the oil, put in fresh coolant, and a new battery it just might still light off and run.
there were two different one barrel carbs use don these engines in the 60s, both had a few variations as well, the autolite 1100 and the holley 1940. both are decent enough carbs, but suffer from the limitations of the cylinder head design. a two barrel conversion, either with a carb adapter or a direct mount setup(this requires some machine work thus removal of the head) does wonders for the driveability of the engie when tuned. and you have a few options, the 2100 autolite, the 2300 holley, the 32/36 weber progressive carb, and the 38/38dgas non progressive carb all work well on this engine. if you have the load-o-matic distributor, swap it out for the later dual advance distributor, especially if you swap to a two barrel carb, as the load-o-matic wont work well with the later carbs.
when setting the timing of the engine, you might find it best to "power time" the engine. this means advancing the timing until you detonation under load, and tehn back off the timing until it stops. the reason for this is that sometimes the balancer slips and the timing marks dont line up properly.
as to the car itself, one thing you should do is change out the master cylinder from a single bowl to a dual bowl master cylinder. one froma 67 mustang wirh drum brakes all around works nicely. i did this on my 64 falcon. all you need is some plumbing bits, brake line, "T" fittings, brass adapters, and a couple of couplers, and not the ones with the compression fittings, use a proper coupler. if you keep the drum brakes you dont need a proportioning valve or distribution block, so that eliminates some issues. my falcon has several thousand miles on the conversion with absolutely no issues, even when towing a small trailer, and that includes highay driving, city driving, and mountain driving as well, and various weather conditions, like rain, snow, etc. also upgrade the wheel cylinder to the V8 wheel cylinders. they bolt in place of the six cylinder ones, and provide better braking for cheap money. again i did this with my falcon and no issues.
going back i recommend using the later duraspark distributor from something like a 77 maverick with the 200. i hooked mine to an orange chrysler ignition box, their street performance box, and ran a blaster lll coil from MSD. once hooked up the motor would light off first try with no choke in sub 30 degree weather even after sitting overnight. you can find how to wire the ignition box to the distributor here;
let me now if you have any questions, i will try to answer them for you, or find the answers you seek. and if you plan on keeping the six, check out the forum i am an admin on.