I wonder if TNT makes a 90mm power ring to fit a 90mm throttle body! Has anyone dealt with this problem yet?

 

TNT makes a 90mm ring thats fits the GM 90mm TB's i hear it can be modded to fit other TB's.

I in the same boat as you, i installed my Fast 90/90 this weekend and have been rushing to get my nitrous back on by next friday when i get tuned