Matt, you're absolutely right.
Pumping the pedal is not the correct word, pardon my poor English. There is certainly another way to describe this furious pedal movement.
What I mean is, if I don't "force" the fuel into the carb with pedal «pumping», the engine will take much longer to start.
I suppose that the "rhythm" of the fuel pump is constant, feeding the carb with a regular fuel flow. But I cannot just leave the carb alone for "pushing" fuel into the mixture. Well, I cannot explain why, but not touching the pedal while waiting for the start is really not the same as "pumping" it.
Jeff / 1984 F350 Crew Cab 4x4/5.8L w351 4V/ T18/ D50 4.10 front/ 8' bed.
Restored 2019-2022.
Nicknamed «Big Brother 1984», due to its soooo-looong shape & nod to George Orwell's 1984 famous novel.