Hi, I have an 03 rcsb 5.3 silverado. I currently have a Truck Norris cam, headers, exhaust, electric fan upgrade, 3400 Circle D stall, 4.10 gears. I'm look for the best route to go for more power. It's pretty quick now but, we always want more. Lol. Any ideas? Thanks

 

Different cylinder heads that raise compression. And I assume you have the injectors to support more power, if not you will need those too.

Past that you need more cubic inches or forced induction.

 

I haven't gotten injectors yet. There are 706 heads on there now. I was thinking tbss intake and throttle body with injectors. Maybe forced after that?

 

LSA or TVS either will make a ton of power.

 

Truetrac, caltracs, heads or FI.