Willy's Carburetors WCD250 Throttle Return Spring Kit Holley Willy's 4 Barrel CarburetorsWilly's Carburetors WCD250 is listed in the supplied catalog as a throttle return spring and brackets: Throttle Return Spring Kit Holley Willy's 4 Barrel Carburetors.Product Details Brand: Willy's Carburetors Manufacturer Part Number: WCD250 Product Type: Throttle Return Spring and Brackets Shipping Weight: 0.43 lb Performance-focused construction for custom, restoration, racing, and street-performance applications Required Components / Sold SeparatelyUniversal Fit – Custom Installation May Be Required . Verify dimensions, vehicle configuration, wheel clearance, mounting points, and related components before ordering.Installation NotesTuning, linkage setup, gasket selection, and fuel delivery checks may be required. Professional installation and calibration are recommended.
