Offered for sale due to the reorganization of my uncle's collection. To be honest, I don't understand what these parts are used for. I don't know much about them, but please refer to the images and consider purchasing. A set of CR7H spark plugs and C-87 valve adapter. - Spark plug: CR7H - Included: Valve adapter - Valve adapter model number: C-87 - Valve adapter features: Lever-type connection Thank you for viewing.