After selling my Silverado Im somewhat undecided as to what direction to take and how far to take my Sierra. Stock WILL NOT do, shes to slow, and I cant stand the thought of getting spanked by c5 vettes, camaros, the new rams, she NEEDS more get up and go.

Heres what I got, Sierra 5.3 6 speed 4x4, so far the only performance mod is my wheatley tune. Ive been thinking hard about a regear to 373s or 410s, but thats pretty costly, or a kb front mount, anyone have any other suggestions? This is now my one and only vehicle so it must be kept reliable. Thanks!

 

I'd go kbracing96 turbo, the turbo will love those gears and with a baby cam and 10#s that ought to put you in the mid 12s easy and atleast give you a chance. As you know you can get crazier from there but if you decide to go with a bigger motor later the turbo kit can grow with you.

 

a tvs1900 is pretty simple and reliable for a dd