The most HP out of a 5.3L vortec engine.

Question

I have an 02 chevy 1500 with a 5.3L engine. I have $400 to spare and I need to know what would give me the most HP and how much HP that would give me.

Answer 1

I think the 7th book is the longest.

Although, maybe the 4th or 6th book may be larger?

You could buy all of them with $400 though.

Answer 2

For more power and torque the power programmer is the answer to the new trucks with the OBD 2 systems.Best of luck.  http://www.car-stuff.com/store/?N=9972+4...