[Klutch]

Stick this in the rubber hose....

Fuel Filler Neck Inlet Check Valve - 1-1/2" Hose

Tanks, Inc. manufactures fuel system components and polyethylene, steel and stainless steel gas tanks for street rods and special interest vehicles.

www.tanksinc.com

Hey, that's really spiffy. My '70 Mach 1 definitely has the fuel splashing issue. Looks like the check valve is a good solution.