I bought a used 455 for my 1970 Cutlass and this was on it. I bought an original type and put a pertronix in it to keep the original look. I have no way to test it but it is probably O.K.. I have pictures if You email me, I can send them. It fit the 455 or 350 Olds engines. It has the cap and rotor attached. I dont have the box that mounts to the firewall, just the distributer Retails $370..00. I need $100.00 for it plus shipping.