well if all you have done is in your sig i would suggest a PI swap before a TC... the TC should be one of the last mods done and should be picked by the power & Tq curve on your dyno sheet to best work with your setup. Typically a 3200 stall triple disk PI (presicion industries) would be the way to go on a modular. Expect to drop 3/10's to 1/2 second off your time when used in conjuction with a reworked valve body/Jmod (shift kit)ROB 98GT said:hello all!! I was thinking of getting a touque converter for my daily driver. what stall should I get? lock-up or non lock-up? I just don't know if it's worth the money. how much could it shave off 1/4 mile e.t.'s? thanks!!