I have a TORO 3 HP gas powered snowthrower. It works alright most
times. But if the snow is too thick and I stall it its impossible to
restart it under any choke setting or squeeze bulb fuel injection (or
lack thereof). It will restart if left alone overnight. I have
already cleaned/ stripped the carb and spark plugs.

Some quirks. The gasil ratio is 1:40. If richer it won't start.
It will run onkly at 1/2 choke. Won;t run if no choke.

Any suggestions?

If it only runs on choke the mixture screw is set to lean try a 1/2 turn
out, counter clock, for a start. Set it by getting it to rev-run as fast
as it will by adjusting the screw, then remove the choke and keep
adjusting till it runs best, then back off a bit. You are probably
flooding it on restart, pull the plug to see. it should run on 32-1
fine.