About that check ball in the accelerator pump well....
Well, I went through my carb and when I put it back together I placed the ball down in the bore. I put the carb back on the truck and had terrible stumbling off of accelerations. I grabbed the flashlight, pulled the air cleaner, and actuated the throttle...and the accelerator pump was not squirting like it should. It was basically a dribble.
Took the carb off, pull the ball out of the accelerator pump bore, reinstalled the carb...and all seems to be well. Squirting like a champ on hard throttle application.
Guess its really hit or miss as to the proper application of that check ball.