I need advice on my build wanting to get the best bang for my buck. I have a 2003 Silverado 1500 5.3l 2wd, stock one tire fire 3.43 gears, 99k miles extended cab 5/8" drop on 22's low profile tires with:
- 1-7/8" lt headers
- cai
- Magnaflow exhaust with x-pipe
- custom tune
Mods I have planned for the future:
- "Rebuild" the 4l60e to hold up to +500hp
- 3500 stall, corvette servo, Trucool max 40k
- 4.10 gears with Eaton posi diff
- 219/227 (1500-6700 operating range) + springs
- e-fans, 150shot of nos and tuned on e85.
My truck is not a daily driver, I drive it every other weekend or so. I want it to be good on both digs and roll racing. I plan to keep it on 18"/20" low-profile tires. What would you add or replace on my list? Thanks in advance

 

Skip the CAI

Other than that I guess the only thing I might throw in is a 6.0 or a set of good heads.