ARI ran 9.20 with a stock trans

 

If you're in a budget like most of us ,I highly recommend Negro Racing in Pa.The guy will built a trany for you with your specifications,you need to know your car weight with you in it,size of tires/slicks you have on the car and finally rear end ratio and if you know how much Hp you car produce it will help also.I lost his phone# but google him and I'm sure you'll fine his shop info.He's a G-force distributor and last year he had a special a clutchless trany with shifter included for $3500.I hope this info help you.
Angel

 

the t56 is a good box gforce builds them with better guts and pro shifted so they are basically the gf5r with an extra gear..not the big gear selection but they are strong and retain the center shifter rather than having to open the side of the tunnel to get the shifter rods to clear..im sure its not a big thimg for them to adapt the t56 to the rotary..give them a call..