Yes. Electroair and Autolite 386 in O320E2G and E3D. No plug hole adapters needed. About 500 hours so far. I asked all the dumb questions, Jeff Rose (he used to answer the phone when he ran the business) very patiently answered them all with "it will make your plugs fire." It does. They work fine. yeah, i searched for platinum and all that stuff, but they just plain (plane) work but at about two bucks a pop i am really bummed out because i bought the first 4pak at napa for $2.87 plus tax. Yep, kept the receipt. Darn inflation!