Could be a sticking mechanical/vacuum advance in ditributer (HEI) or worn cam lobes.
a couple crossed spark plug wires (5 & 7 usually), accelerator pump in carb no good, a bad or wet distributor cap.
You have wires going to the carb on a 72 Chevy c10?
there is no carb on that truck
wow
its fuel injected through a throttle body
Adjust the choke on your carb.
Either the timing is excessively retarded or you have a worn camshaft or related problem.
the 5th character in your VIN is the key to your answer. "M" = 200ci-V6 chevy, "A" = 231ci V6 Buick, "J" = 267ci V8 Chevy, "G" = 305ci Chevy with 2 bbl carb, "H" = 305ci Chevy with 4 bbl Carb, "L" = 350ci Chevy with 4 bbl carb
yes, but check engine will probably come on and stay on
Run a small piece of wire down through them and clean them with carb cleaner. Then blow them out with air.
Your float is sticking
NO.
Check on the carb.