These sets are made by FIE, in-house using top quality 8mm Taylor solid core wire. If you do NOT run electronics on-board (tach, shift-light, data logger, etc.), these are the wires you want for your magneto. With ZERO impedance, these wires deliver every volt to the spark plug. NOTE: Not compatible with electronic box type ignitions or MSD Pro-mags!These wires all run LONG compared to standard Taylor, Mallory or MSD sets. You won't come up short! The 90 degree plug terminals and boots are installed for you. Trim to fit and terminate the magneto end yourself using the supplied terminals and black HEI boots. Since there's a BUNCH of extra wire here, we decided to include 4 extra boots and terminals (not shown). You can use them for spares, or assemble 2 extra spare coil wires for yourself to have at the ready. Why doesn't everyone else do that? We also include a set of shrink sleeve numbers for each end of your wires.Product Description: Spark Plug Wire Set, Suppression Core, 8.2 mm, Black, 90 Degree Plug Boots, HEI Style, Cut to Fit, V8, KitPit Stop USA offers FIE Sprintmag Spark Plug Wire Set - Suppression Core - 8.2 mm - Black - 90 Degree Plug Boots - HEI Style - Cut to Fit - V8 SUPP90-B at low everyday prices. Be sure to check out all our products from Fuel Injection Enterprises, LLC including Fuel Injection Enterprises, LLC Spark Plug Wires.