NGK BPR 7ES resistor plugs are readily available in NZ, can you not get them in the states ?None other than easy to find and in my case they work with my ignition system. I have not had one foul or fail. I have a set of normal NGK resister plugs that are brand new, but I'm keeping them in a box for when they become classic collectibles.
The NGK BPR7ES is available next day at the local auto parts. Autolite APP 3923 same day. The smaller 5/8" wrench size plugs are plentiful. The 13/16ths wrench size APP63 plug I have to order, but could get it next day. I'm just keeping things simple. Using a commonly recommended plug is not a priority. However, I'm not recommending anything. Merely reporting on what works in my Norton 750 engine.
