The small electric fuel pumps that look like a metal fuel filter with a couple of wires will flow fuel without running. A mechanical fuel pump will pull gas right through one. Use one of them with a push button switch as a boost pump to prime the fuel system on a garage queen that sits more than it gets driven. If the fuel system loses its prime in less than a week, fix or replace the mechanical fuel pump.
Jerry

"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!