Here's a couple videos of my Dad's 72 C10 that I recently pulled in out of the pasture after sitting for a quarter century. I put a kit in the carb, replaced distributor cap, adjusted valves(one rocker had been running off the valve) only had to change one tire. Oil change and filter. Pulled thermostat. Original coolant was in it!
Unbelievable...the bowl in the carb looked brand new. I asked Dad what he wanted to invest in it and he green lighted re-doing it. I was surprised....we're pretty tight around here. We generally only spend money on tractor tires, diesel and mac-n-cheese.
https://www.youtube.com/watch?v=qvSSYEumnKY
https://www.youtube.com/watch?v=MI0YTeHvFHM