ATI all the way. I've used ATI, Munsinger, TCI and GER. The Munsinger did exactly what he said it would, but I did not run it long enough to give a complete review on durability. We ran the Munsinger for two years and then sold the car with it in it. The car ran faster with the ATI and never had any damage or failure with it. We ran the ATI for over 12 years without any problems. We sent it back and had it checked maybe twice the whole time.
I run BTE convertors...never any problems .....been running this one for 6 years now.......street driving and drag racing also....give them a call and tell them your combo....they will set you up right imo
Are you looking for something local? There is SMI in sacramento. Spec rite converters(not sure where they are) If anybody knows Len Schnieder he builds converters. If not order one from ******* converters. If you were going for some bad *** race one with nitrous or whatever then I'd call continental or coan or munsinger.