i tried to put a b16a auto into my 90 hatch and the tranny of the integra was too fat.

I was wandering if there were another zc auto tranny i could use that would give me better performance
Remember this is an auto tranny that is used as a dayly driver for someone that's in the field all day and does not want to race .

I still have the b16a sitting in my carport, if i wanna race, all i need is a y1 and have the zc blown up.