yes, it is a one wire alt. and yes, I do plan on using a relay to cut the alternator off. I ordered some goodies from Mad Electrical and am waiting for them to show up. I got the NHRA cut off kit which is mentioned at the bottom of this page that does this, as opposed to just cutting the + side of the battery: CatalogCant tell if your alt is a one wire or not but, if it is are you planning to run a relay to cut the alt power when you switch off? Just curious because I’m in the middle of planning mine. My new fuse panel has an ‘alt exciter’ wire and I’m thinking about using that wire to a relay. Wondering what your plans are..?