For the cost to do either one, I think you will get more bang for your buck with the procharger. N/A builds aren't that cheap, esp compared to some of the boost options.
2011 GT Prem - 400a, Brembo Pkg, 3.55s, 6spd
OLD 405rwhp/381rwtq - 12.71 @ 113.13mph, 2.099 60' on stock tires (DA corrected 12.3 @ 116mph)
Mods: Boss 302 bottom end, JPC Stage 1 heads, Boss 302 Manifold/Oil Cooler/Front Fascia/Rear Diffuser, Mishimoto Radiator, Spec Clutch/Flywheel, Airaid CAI, JBA Long Tubes, Pypes Super System, Eibach Pro-Kit, UMI LCA/Relo Brackets/Panhard Bar, GT500 wheels/Nitto NT555 (255/45 F, 285/40 R), Barton Shifter/Bracket, SGII /w blendmount, V1