Extra long, insulated, hot air tube for automatic hot-air chokes on Autolite and Motorcraft carbs. Can be used with headers or your stock exhaust manifold. 

The  tube clamps to the outside of the exhaust manifold or header, and can be bent to any shape to keep it neat and clean (factory-like installation). The open end of the tube brings heated air up to the black choke cap on the carb, in much the same way as the original OEM tube. Click here for larger image.