In Reply to: Vapor lock on Ford 600 posted by Charles on June 26, 2018 at 08:27:03:
As already mentioned, it cannot be vapor lock by definition.
That said, boiling gasoline can cause such symptoms and is potentially dangerous.
Is the muffler heat shield in place? If not install one.
Avoid gasoline with alcohol if possible.
Yes, you can remove the OEM muffler and install a vertical exhaust with muffler outside of the hood.