I drive a 04 silverado rcsb 4.8 with a 5speed it has headers, cold air intake, dual exhaust and 3.73 w/ locking rear end and I got destroyed by a stock 05 rcsb with a 4.8. I had a good pull on him until third gear. Do these nv3500's just have terrible gearing or could it be something else? I am hoping I can save the cash to buy me a t56 soon. But if I were to just throw a cam in it and tune it for the time being would I be able to finally get a good pull in third gear? Just curious if any of y'all have come across this.