Hard Starting Flat Heads
Playing with Ford or Lincoln Flat Heads as hot rods we had a couple of cures for hard starting. One an electric fuel pump back by the tank to push fuel up to carb before trying to start, also good for clearing vapor lock. The other was a switch to by pass the resistor so that for starting you could get full voltage. They even sold a solenoid that had a side tap so that when the starter was turning full voltage went to the coil.
On my hot rod Lincoln we removed the manual fuel pump completely and went straight electric with a separate switch under the dash. Great anti theft device and if you did flowed the engine you could turn off the pump push the gas peddle to the floor and hold it while you cranked the engine once it cleared the excess gas the engine would almost always start and you would then turn the pump on. Pump of course was in series with the ignition switch so that it would never run when the ignition was off.
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