Why would it cost points & not just an item for improvement that is called out on the judging sheet the rules do not say a correct ribbed over-flow tube is required? See below from MCA rules.
II. Radiator, Hoses, Clamps, Lines and Fan Shroud:
Radiator: Ford type. Painted semi-gloss black with correct core thickness and black rubber over-flow tube.
Hoses: Molded rubber hose of original size and configuration. FoMoCo.
Hose Clamps: Pedestal type. 66 San Jose assembled cars may use wire type with staples. Transmission Cooling Lines: 64½ - may be crimp or pedestal type clamps.
Fan Shroud: Required on all HiPo and A/C. Painted black with rubber pad stapled to battery tray side of shroud. Flat tip shroud attaching screws.............................................................. 6 Workmanship, condition and cleanliness...............................4