My Valiant has a Ram Air box housing and two home depot dryer ducts. Right now they are just shoved through the holes in the radiator support, but eventually I want to make some sort of sheet metal snorkel that will firmly attach to the radiator support and allow me to clamp the hose to it.

valiant engine - Copy.jpg
'67 is an abbreviation of 1967
67' is an abbreviation of 67 feet
They are not interchangeable.