1967 Mercury Cougar with 351 clevland

@ok4450 … just curious about how vapor lock can occur after a mechanical fuel pump. I can see how fuel vapor pockets in the gas line leading to the fuel pump could cause vapor lock preventing the fuel pump from pumping the fuel to the carb, but everything after the fuel pump the gas is just getting pushed down the line, right? Fuel vapor pockets forming after the fuel pump should be pushed by the fuel pump right into the carb fuel bowl, where any vapors, seems like they would just float to the top of the fuel bowl & dissipate and eventually get sucked into the engine intake.