Also I suggest not to put much faith in original brass floats
Every time the carb warms up and then cools down the brass float has to swell and shrink a tiny bit like a balloon
This expansion and contraction cold works the brass and makes it very brittle until a crack develops and it starts to suck in gas on every engine cool down cycle
The float slowly sinks and the carb starts to get flooding and gas leaking out but it happens gradually until you truck is stalling at red lights after working alright at high throttle.
The brass once brittle is quite useless, soldering it shut is a very temporary solution and leaves you a still unreliable carb for long road trips

New brass floats are available at NAPA for about a $20 and won’t let you down.
Save the old ones for a farm truck or wall art.
-s