Engine Hard Starting After Days Of Rest

yeah Mike you got it right.
But the primer pump can be at the back and on a momentary on button; push and hold to pump. Release to stop.
putting the primer bulb on the suction side, under the hood, comes with it's own set of bonehead ideas, cuz the headers are even closer.

To help combat heat, when I fabricated my 3/8 steel line, I put it into the front stub frame, and brought it out very near to the pump. My steel line terminates within inches of the pump. I drilled a large enough exit hole in the frame to allow for engine movement, and did not secure the fuel line inside the frame. I hand formed the edges of the hole so as not to cut the fuel-line. Then after the engine was installed, I tied her down with a torque-strap. The jumper hose is less than 4 inches long, as the supply line is nearly touching the pump inlet. That was year 2000IIRC
I agree, heat and a rubber primer bulb are a bad combination. Yes, if you have a electric priming pump it needs to be on a momentary push button switch. Should have elaborated. How many cars ave electric pumps simply hooked up to a toggle switch. Oh boy, could that be dangerous in so many situations as well.