'04 4.8L longbed

[yournamehere018]

All stock, just a magnaflow muffler, made 230hp / 228tq

We'll get it dyno'd next week and see what the new shorty headers and air box mod makes.

Just an FYI,

later,
allen

Is that what I should expect from a stock 2000 4.8 with exhaust and cold air intake?