Type of fuel, temperature and usage are big variables.
An engine compartment mounted pump sucks the fuel from the back. If the fuel gets hot and boils, pump capacity does not matter. It won't pump anything useful sucking vapor.
Current pump gas is made for EFI systems and boils easily.
A suitable electric pump mounted in the rear where it is cooler often works much better vs engine mounted pump. It gets some pressure in the fuel before it gets into the hot engine compartment. That would be my suggestion.
Good points, and I'm definitely not opposed to electric pumps. My car also has a fuel filter with a 5/16 return line to prevent vapor lock. At least that what the claim is. I havnt had any hard starting issues when hot, so could be working.
