best carburetor for a ‘79 GMC C7000

[wbmoore]

I’m told these are overly complicated and un-reliable carburetors. I’m looking for a carburetor that is simple and reliable enough to sit for a month and then just start and run. I’m looking for recommendations for that carb.

[geezer#99]

Originally Posted by wbmoore

I’m told these are overly complicated and un-reliable carburetors. I’m looking for a carburetor that is simple and reliable enough to sit for a month and then just start and run. I’m looking for recommendations for that carb.

Why change the carb?
If it needs a rebuild do that.
If you want it to start once a month just plumb an electric fuel pump into the fuel line close to the tank. Set it up with an on/off toggle switch. Turn it on for 30 seconds, close the choke, give it a couple pumps and fire it up. Shut off the electric pump until next month.
You don’t even need to rebuild it first. Try a pump first.

Here’s a carter that has a max pressure of 4 psi. Perfect for starting.


https://www.summitracing.com/parts/crt-p4389?rrec=true

[franken]

Originally Posted by wbmoore

I’m told these are overly complicated and un-reliable carburetors. I’m looking for a carburetor that is simple and reliable enough to sit for a month and then just start and run. I’m looking for recommendations for that carb.

The same carb has been on it for 40 years. How unreliable do you figure it is?
Crap gas will be the issue, not the carb.
Google ethanol.

[wbmoore]

1976GMC20....the auxiliary pump is driven by a Wisconsin TJD. The PO (a pro auto mechanic) lightly rebuilt it. Ran on the bench but didn’t when he reinstalled it on the truck. The truck has been sitting so I am working on the systems to put them right. Main pump does work. The biggest problem is the carb......won’t start after six hours without being primed. For now, maybe the fuel pump mentioned above would be a quick fix.
Truck will be stationary for the most part.
Don’t know enough about wildland fire fighting to even ask questions.
I was hoping for a consensus on a replacement carb....too many things to do to spend time rebuilding a carburetor.
Thanks for the input.