(for 4 Cylinder vehicles with Distributor Caps that have SCREW-IN ACORN HT Leads). This kit is to replace existing plug & coil copper High Tension leads as originally fitted to 1930-70s vehicles. It uses 7mm dia COPPER Lead along with SUPPRESSED " CHAMPION" Plug Caps to reduce static interference to other electrical items. To make a plug or coil lead simply cut the lead to the length of existing leads or when existing leads are not available choose the best route from the Distributor to the plug or coil and cut to length. SCREW ON Plug Caps onto one end of the lead. On the ...