Ok guys I need some help. I'm at a Shogun parking lot where a ton of cars hang out waiting for races. Well a guy in a Corvette Z06 offered a run so I said ok. We're on 295N going about 40mph and we both take off. I nearly have a car length ahead of him before he really starts catching up. In fifth gear the car felt like it wasn't going anywhere. The car was up to 5800-6000 rpms and I then shift to sixth wondering if that was going to help. NOT! Four times we raced and each time I took him but when I reached fifth/sixth gears again my car felt like there was no more power left in her. I was running 21-21.9psi, PEAK, with no intercooler. All the mods I have is listed below. Do you guys have any suggestions as to what I can do to really kill this guy in his Vette? BTW...I'M NO LONGER SELLING MY SUPRA!!! I am hooked on this racing shit.