340 has a hard time starting when hot?

$12.99 electric jiggler fuel pump in line with stock pump. Hit the pump before you start it for about 15 seconds and it will prime your boiled empty bowls. turn it off after it starts. Your mechanical pump will pull right through it. If your mechanical pump fails, the low pressure pump will even get you home.
Universal Fuel Pump HEP-02A New Gold Electric Gas Diesel Inline Low Pressure 12V | eBay

Carter/brock carbs are much more sensative to heat than Holleys with their isolated fuel bowls. I had a gummed up advance plate in my 340 once, did the same thing.Starter woulf turn faster and faster while I was pumping the gas and it would finally start. Not cool on a 8 car ferry when your the lead car!