I've got a 04 rcsb silverado with a 5.3. I have exhaust(no headers), cai, and a tune. It has the 706 heads and runs really good as it is. I want some more power. What do I do next? Intake? Stall? By the way this is my daily driver and has to stay dependable. Thanks guys.

 

A matched combo of cam, converter, and gears, and the necessary tuning to make it scream...