Carburetor Main passage bleeder

[ArtJ]

I was just wondering, is there a standard hose barb that could be
directly threaded into the 3/8 passage? Possibly using one of the
90 degree street ells first for clearance issues? The shutoff could
then be in line with the hose at a convenient point. Possibly just
use a standard tank shutoff valve with barbs?

Would there be any issues with the standing fuel in the first section
of hose? Course it could be drained periodically. Would it affect the
jet operation?

Regards

Art