Carb sputter uphill

[ET_77K25]

Hi folks, I'm new to the forum and I'm hoping someone can help me out with a carb/fuel question.

My '77 K25 w/ 454bbc sputters going up hill. I can see the fuel gauge bouncing around so I'm sure the fuel is sloshing around in the tank, but I should still have lots of fuel. It's almost like the fuel pump is being starved of fuel.

What can I check to find out what the problem is?

 

[fast 99]

Fuel pressure, volume and filters. New fuel pump quality is horrible. If everything checks out [unknown what carb] possible metering rod stuck.

Bouncing fuel gauge is likely caused by the gauge itself. Shouldn't be an issue provided there is enough fuel in the tank.

 

[SQ HAF KRU]

You don't say what brand of carb you have, if its a carter, or Edelbrock, you might check float bowl level, sounds like the float level is to low, and fuel in the bowl is running to rear...aka fuel starvation. Just thoughts

 

[PrairieDrifter]

Fuel flow and float level. Timing could also be an issue, too much timing that is.