Pn# -SOAF2001- STAINLESS STEELFull Length Fuel Lines, Return lines & Vapor Lines: The full-length Main, Fuel Line, Fuel Return Line and after 1970 The Fuel Vapor Line run the fuel length of the car or truck. The main and fuel line often run together with the main fuel line being 3/8" in most cases and the return ¼" or 5/16" on fuel injected cars.
