The more you let it breath the better. You could upgrade to the SVT or bigger throttle body, you could port the UIM, you could change the MAF and the air intake to open air KKM, hell you could add a turbo while your at it. The sky is the limit. As for parts check out the BAT cataloug or some of the other aftermarket suppliers in the Mods/Parts section of the CEG's front page.
