I started the truck with the cloth in the secondary's, started just fine, turned drivers side mixture screw in to seat and engine slowed but did not die, turned the passenger side mixture screw in and engine died right about the same time the screw set in seat, this is all while the cloth is in the secondary barrels.
Okay, that's a good sign.
Have you removed the sight plugs from your float bowls?
yes, the sight holes I removed on both ends of the carb, the one in the back I had to shake the truck pretty hard to get the fuel to flow from sight hole, the hole in the front (primary) the fuel is just a hair below the sight hole.
I'm trying to understand what happened "all of the sudden" to his carb, and why going through it didn't resolve the problem.
If he has a sunk float it will be spilling over through the boosters.
But would be apparent at the sight plug.
These carbs do not have externally adjustable float valves.
mine has the needle valve on top of the bowls but I am guessing they are set right as the fuel is about at level.
Is it possible that I installed the power valve to tight? or the pump out of wack? I know that when I installed the carb after rebuild the pump under the primary bowl wouldn't set right unless I turned the nut most of the way out, then set the arm, then tightened the nut back down
is it possible I didn't get the arm right? maybe pushing into the pump when it shouldn't be?