Hello, I am new to cars in general and was wondering why there is a max injector size you can use with an FMU. For example, what would be the problem with running 1000cc injectors with a stock ECU and just an FMU? I am not planning on running 1000cc injectors but I want to know the reason why there is a limit to how high you can go with a stock tune and an FMU. The injector size I would like to run is 650cc. The FMU is just a temporary thing until I learn how to install megasquirt. Thanks.