This is from Tremec's website

TKO (260 070
100/45
425/576- Hp/Tq specs
5,500/2,495
3.27 1st
1.98 2nd
1.34 3rd
1.00 4th
0.68 5th
3.00 R

TKO II (TCET1377)
100/45
475/644- hp/tq specs.
5,500/2,495
3.27 1st
1.98 2nd
1.34 3rd
1.00 4th
0.82 5th
3.00 R

See for yourself.

http://www.tremectransmissions.com/e...ts/tr-3550.asp

Ok the tko 2 is alittle stronger but by only 50. But Sam is right. It's for a road race car not a drag car. The ideal thing to do is get the TKO 2 and put a TKO 1 5th gear cluster in it. -Mark