dinnc

Hmmm...I dunno about how thorough the carb rebuild was. It was done at a shop, and the PO was charged and arm and a leg for it, but the receipt give no details. I am going to go out tomorrow and look in the carb and see what I see. I am also going to check the timing. I have read were lots of folks put a Weber on instead of the factory carb...are the factory carbs known to be problematic?

I was thinking accelerator pump. I have the receipt from the PO for when the carb was rebuilt, but it does not say anything about a new accelerator pump, only a price quote for a carb kit(gaskets and jets I assume). I have not checked the valve lash or timing yet, they are on the short list of things to do. Thanks for the help. I will check the fuel flow shortly.

Hello all, newbie here. I just purchased a 1976 620 longbed with an automatic. The truck has 142k and very little rust. It came with all the original paperwork and the factory manual. Its bone stock and all original. I love it..but I have an issue I cant figure out. The carb has been rebuilt, new fuel pump, new filter, plugs, wires, etc...when you start to accelerate the truck bogs BAD, and will cut off. It get better when its warm, but not great. If you push the pedal down,it acts like its flooding, if you let off and then get back into the throttle, it does OK. Given what has been done already, I am at a loss of where to go next. I am a bit confused by the air pump, and all that stuff. Hope someone can shed some light...thanks!