roush supercharged

So when I'm driving my car, when I go WOT and over 6500 rpm's my car starts to flash the check engine light and its a p0300 code. I check my misfire data through a handheld I have and I have misfires on every cylinder as follows (cylinder and number of misfires): cyl1-8 cyl2-2 cyl3-18 cyl4-1...

So we recently installed the 767HP package and dyno tuned a 2015 GT with the Roush Supercharger kit and it made an impressive 682RWHP on 93 Octane. We are very impressed with the numbers from this car with only 10LBs of boost. Check out the video below for more info