Doing a 4-speed this winter...

http://www.keislerauto.com/index.php?/mopar/mopar-parts-and-accessories/pedal-kits.html

Brand spankin' new for $345.95. TKO-600 Tremec 5-speed overdrive complete kits for around $3900.00. You can run tall gears on the street and overdrive for cruising. 1.00 4th and 0.64 5th gear.

New kit on Ebay $3395.00

http://cgi.ebay.com/ebaymotors/Keis...22ffae459d&_trksid=p4506.c0.m245#ht_833wt_926

your not gonna run 10's sec's on a TKO 600 for long unless you spend another 1500-2000 dollars on it at liberty's. also you can't powershift them things for nothing. alot of people experiance gear lock out, tremec has a few issues they need to resolve. i've done alot of home work on going fast with stick shifts. Jerico or G-force in the way to go. but i think for mopar installation the Jerico is way easier.