The Spectre Dual Feed Fuel Line with chrome fittings is fully adjustable from 8 inches to 10 inches and was designed to fit Holley 3310/4150 style carburetors. Featuring machine flared ends on a 3/8 inch diameter fuel line with magna-clamps; this dual feed fuel line includes a 0-15 PSI fuel pressure gauge and is triple chrome plated in #304 grade stainless steel.