I have bought from Egge, Kanter and Patrick. Egge seems to still have more made in USA stuff. Kanter is just about all Asian stuff. Patrick Dyke and his son can give you a lot of advice over the phone. Patrick has been playing with 6 cylinders for at least 30 years that I know of. I actually prefer to buy NOS on eBay, but it takes time until the right part comes up and then its easy to forgot what you have and you wind up with a lot more spare parts than you will ever need.