once you get that vehicle running, few things to note, if the vehicle backfires after turning the vehicle off, either you need to add a capacitor to the distributor, replace the capacitor if it already has one, your timing is too advanced, or your fuel jets are too big and either need to decrease on them or replace the jets from wear and tear.
dieseling? try hooking up a vacuum gauge, calibrate your air to fuel mixture until you reach around 18 inches of mercury (or more if the vacuum lines and piston rings are of that great of shape), keep going until that vacuum needle begins to dance around (becoming unstable and starts decreasing), then go back half a turn, that should do it.