don't use the drain hole to run your truck. it will get all the junk from the bottem of your tank. that is why the pick is on the gage. WW
my sending unit doesn't have pickup.. i understand there's a screen on the pickup-style sending unit, but that's what the fuel filter is for inline from the bottom of the tank to the main fuel line. also, i can use this shutoff valve as a little anti-theft feature to cutoff fuel to the carburetor. i've done something similar before.
thanks bartamos and DADS. guess i'll be mcgyvering after all