You'll probably only need to upgrade the fuel injectors and fuel pump. In terms of injectors, based on this website that has a calculator for this sort of thing, you're going to need 52lb injectors minimum. In terms of fuel pump, a good option would be maybe finding a cobra tank w/ the fuel pumps, I think those handle roughly up to 600HP, then throw on a Kenne Belle Boost-A-Pump to make them push even more than that!