Hey Denny I found some info. The new March issue Classic Trucks in Ron Covells column Professor Hammer's Metalworking Tips. It's Like I thought stainless uses a single flare and you are right it is 37*s and uses a two piece fitting. This is on page 88 and he directs us to
www.godmanhiperformance.com for the proper flaring tool and fittings. The mag just fell opened to the page this afternoon like it was meant to be.
This may help in converting.
http://godmanhiperformance.com/prod...lare%20to%20Male%20Inverted%20Flare.html