Vacuum advance cover mounts over your factory unit with two sided adhesive. GM HEI cap cover snaps over top O.E.M. wire retainer.
| Part # |
Product |
Media |
| 9090 | GM HEI Ignition Cap "Cover"- Chrome | |
| 4973 | Vacuum Advance Cover- Chrome | |
http://hedman.com/images/ePIM/original/9090.jpg
http://hedman.com/images/ePIM/original/4973.jpg