A1
Kris at Continental is a very knowledgable converter guru. He knows the combinations that work. If you give him enough facts, he can build a durable, consistant converter.
He has built several for my cars and the guys I race with and we are all happy with his work.
I used Steve Griner's converters/trans. until he sold his equipment to Kris and Griner recommmended him to me.