Ok so I'm new to this sight and I just ran my truck down the 1/4 mile and I ran a pretty respectable time which is 13.7 while spinning through 1st and 2nd all I've done to the truck is efi live and propane injection I've got nitro 420s on there as well and I want to get my truck into 12s I know I will need a built trans but I'm just wondering what do you guys like to run and if any of you are in the twelves or close id like to know what you're running thank you