Shop › Datsun Roadster Carburetor overflow tubes and Banjo Bolts Image 1 of 2 Image 2 of 2 Datsun Roadster Carburetor overflow tubes and Banjo Bolts $25.00 This is for a pair of overflow tubes and a pair of banjo bolts. They fit all years of the 1600 and 2000 Roadsters. Quantity: Add To Cart Added! This is for a pair of overflow tubes and a pair of banjo bolts. They fit all years of the 1600 and 2000 Roadsters.