Have any of you guys had dealings with Street smart transmissions/converters out of Tennessee? My brother is thinking of using them for a converter build. I'm a little worried as they only recommended a 4000 stall for his 351C 4v motor. I was thinking more like 5000 to 5500 as this is a race only car with 4.30 rear gears. I'm just curious if anyone has input on them, good, bad or just ok. I tried to steer him towards Neal Chance, ATI or Dynamic but he stumbled on this guy and is pretty firm in using him. Thanks for your input. Jim