I bought a 2000 silverado RC short bed with the 5.3. Since then I added a custom 3 inch in, dual 2 1/4 out Borla exhaust, a K&N airfilter and a Superchips Tri Tune Max micro tuner. Since I bought the tunner you can really feel the difference in horsepower. How much horsepower do you think I have and can I run with a RC shortbed Dodge with a Hemi.