904 Bracket Racing Transmission

HotLines said

I would have Dynamic Transmission in Branford Connecticut build me a 904 as their warranty
far surpasses anyone's - Phone:(203) 315-0138... They can be found in " National Dragster "

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Dynamic is not in CT anymore, they are in Delaware. I'm sure they build good transmissions but I believe they are known more for their converters. I spoke with them recently, good guys.
http://dynamicconverters.com/home.htm

Pro Trans is probably who you want but they are $$$$.
http://www.protransracing.com/

There's also A&A.
http://www.aandatrans.com/Products/Super-Competition-904-Small-Block-Aluminum(1966-Up)__12003A.aspx

Ultimate gets a lot of recommendations for converters.
http://www.ultimateconverter.com/