Weird, sudden AFR issue Proform 750cfm!

Are you positive it's leaking from the squirter base?

Maybe try this. Get the car warmed up so it will run without having to hit the pedal. If it does need some prime, use the other pump. Dry the area with cleaner or air. Fashion up a piece of paper to block any air flow past the squirter or tape over the nozzle openings to rule out siphoning. Fire it up and see if it still leaks. Not sure I would dust the area with a powder to show leak pattern. Desenex on oil leak sources is great!