Coil Hvc-3 Series Use With Power Grid 600 Single Channel Pn 8001 MSD IgnitionThe HVC III Coil is completely built in house so our engineers have exclusive control over their performance and quality. The Coil utilizes an iron U Core design with a segmented bobbin for improved voltage distribution. The bobbin is molded from Dupont Rynite FR946 material which has incredible dielectric capabilities at high temperatures. MSD also incorporated a cutting edge winding material that has improved insulation and is also capable of