2.4 vvt upgrades
 

Currently, I'm racing at an oval track and I have a 2008 Chevy Cobalt with a 2.4 VVT swapped out of a Pontiac G5 GT. I'm running a two-port stand alone wiring harness. My question is what can I do to add power via bolt-on from the throttle body to the intake to add more torque and power for coming out of the turn. The rules say not turbo, supercharged, and nitrous of course. Everything must look stock also and then, of course, I would get it returned. Just want to know what's out there and people have had the best luck with.

Thanks