I'm pretty sure FF will make any size TB... (I thought they used to advertise 1.14 for A-bodies, and I know a few A-body owners who have the 1.14)... For your street car as you've described, the 1.12 would be fine (the 1.18 if you want better road course/autox track performance).

Mopar Mitch "Road racers and autocrossers go in deeper and come out harder!"... and rain never stops us from having fun with our cars... in fact, it makes us better drivers! Check out MOPAR ACTION MAGAZINE, August 2006 issue for feature article and specs on my autocross T/A!