I have a 74 challenger that I just swapped a 340 for a stroker 440. The fuel system is original with the exception of a small electric kicker fuel pump run in line by the tank. I am having issues with vapor lock. The car will idle and drive for about 30 minutes on a summer day before cutting off. My question is could I use the line that was run to the charcoal canister in the engine compartment labeled fuel tank, to run from a fuel filter with a vapor separator back to the gas tank?
