Carburetor Adaptor Plate Spacer Weber DGV for 510 1.6LBillet aluminum carburetor adaptor plate for using a Weber DGV downdraft carburetor on a stock Datsun 510 intake manifold. This is a single piece adaptor (most are 2 piece) that matches up the ports much better and is less prone to leaking air than most other adaptors. Includes mounting hardware and gaskets. *See PT# 800 1891 for stock 510 carb spacer.