Engine Stall--'85 C10

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Took my truck for a drive today and stopped to get a drink. I was waiting in line for about 15 mins with engine running (AC off and temp stayed around 200 degrees) and once I drove away I kicked on AC and about 2 blocks later the engine stalled. Pulled over and waited a few minutes and truck started right back up. Driving home it was not driving well and engine would rev itself multiples times as I was driving at cruise speed. Continued to do this for ~10 miles. Any ideas or suggestions on where to start?

This is my first truck and have been learning the joys of square body ownership.

 

[78C10BigTen]

Im sure more suited people will chime in but id be looking at carb vac lines and possible carb gasket leaks.

 

[78C10BigTen]

Start it up and let it idle, spay ether all around the carb base gasket and listen for rev ups. If it revs thats where your gasket is leakin.

 

[1987 GMC Jimmy]

I’d look for carbon tracking, oxidation, arcing evidence, and/or melted plastic in your distributor cap/rotor/coil/rotor bushing/spacer for the spark side. For the fuel, I’d hold off for a minute. And yeah, definitely check for vacuum leaks, but you may just have worn out disposable ignition parts. If so, try a brass contact cap instead of aluminum. My AC Delco cap and rotor (aluminum) were fried at 30K miles. I got a Duralast set, and I’m gonna see how that goes.

 

[82sbshortbed]

Good places to start.

 

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Thanks for all the suggestions