Pouring through that thread linked by 650Skull reminds me that I forgot to address your report of a stripped bowl screw, in the one blind/cramped area where there's little room between the end of the threads and the carb body.
One of my carbs has the exact same problem. I was able to grind and fit a tiny nut in there, and snug that corner of the bowl using a slightly longer screw. I plan to make a threaded insert for that at some future time.
If the bowl cannot be properly snugged-up, either from warped surfaces or missing screw(s), there's a chance that the center area won't seal, and fuel mixing/delivery will be contaminated by unwanted air/fuel seeping through the slit/gap.
It sure screwed-up my carb adjustments until I did that temporary screw fix, straightened the warpage, and used new bowl gasket...
One of my carbs has the exact same problem. I was able to grind and fit a tiny nut in there, and snug that corner of the bowl using a slightly longer screw. I plan to make a threaded insert for that at some future time.
If the bowl cannot be properly snugged-up, either from warped surfaces or missing screw(s), there's a chance that the center area won't seal, and fuel mixing/delivery will be contaminated by unwanted air/fuel seeping through the slit/gap.
It sure screwed-up my carb adjustments until I did that temporary screw fix, straightened the warpage, and used new bowl gasket...