NOS Gemsa single overhead cam cylinder head for Model A/B engine. The head has new valves ,springs and cups installed by Phil Andrews. The chain drive has been changed to Gilmer belt drive. I have the "Cam Doctor" report on the camshaft available. Included are fabricated fuel injection manifold, dual Winfield carb manifold and one of Bob McKinney's blank front cover to machine for the cam drive. Roy Creel still has the Bonneville record of 216 mph with this type of head.