Chevrolet trans in Cranbrook, British Columbia

Borg Warner T-10 close ratio, I am not sure what this came out of, I have it in my 70 Nova and I put about xxxxK on it last summer. It will occasionally pop out of 2nd on deccel and the vent is missing otherwise it is not bad for a tran that is probably 30or 40 years old. It has a Competition Plus shifter with a new Hurst lever and ball, I also put new bushings in the linkage. It is a 10 spline input and 27 spline output. I will sell it without the shifter and or linkage. I am looking for a wide ratio tran and would be interested in a trade for a BW, Muncie or Saginaw.