Inspect and retrofit your Mustang's fuel system for safety.
Is your fuel system adequate - and safe? In recent years, there have been a rash of fuel system related fires mostly because motorists are not inspecting and maintaining fuel systems as they should. This logic applies to classic Mustangs as much as it applies to any other type of vehicle. Your Mustang's old fuel system hoses are not designed to tolerate today's gasoline additives - and this includes ethanol (E85). Are your fuel hoses safe?
First order of business is fuel system hoses, carburetors, and fuel filters. Although you can purchase fuel system hose to use on a low pressure, carbureted fuel system, we suggest using heavy-duty, high pressure fuel hose instead - which is designed for today's harsh fuel additives, including ethanol. We're talking fuel injection pressure tolerant hose with a higher burst pressure.
Where possible, eliminate fuel system hose altogether - hard-lining your fuel system between fuel pump and carburetor. The easiest way to hard line is the use of a 1964-65 Autolite 2100 or 4100 with a solid line between pump and carburetor. Use a fuel pump with fuel filter built in that's easy to replace.
And while we're on this subject, if you have built a high-performance engine for your Mustang, did you remember to upgrade the fuel system? If you're making 400 horsepower, that wimpy 5/16-inch fuel line isn't enough. It's like asking your engine to use a cocktail straw for a milkshake. At wide open throttle, you need fuel volume - LOTS of fuel volume or your carburetor runs dry. How embarrassing when the competition roars past you. Good rule of thumb is to fit your Mustang with 3/8-inch fuel line - available from Classic Tube. And if you're stepping up to big time power courting 500 horsepower, you need 7/16-inch fuel line and special accommodations.