You'll be in the mid-high 13's if everything is done correctly. Do a search, there is a few threads on here how fast people has ran with 9b's and 13g's or 10:1/8:5.1

 

I did do a search but I cant find anything from a member that has done a TT Conversion and ran it in teh 1/4 mile, but 13s sounds about right i think

 

http://www.3si.org/forum/f53/13-9-103mph-fwd-tt-10-1-6-psi-no-tune-416277/

http://www.3si.org/forum/f53/any-fwd-tts-running-12-lower-1-4-a-411552/

http://www.3si.org/forum/f53/tt-conversion-link-thread-381471/

the tt conversions are highway monsters they don't run all that well in the 1/4 because of traction issues.