Yes I have read it all. You cant have a Superchip and a remap, as you are chaging the same thing. It would be like having 2 steering wheels. There is only one chip, which drives the ECU, unless you have a piggyback chip, which are generally used when fitting auxilliary systems, ie Superchargers. Mapping a 2.8 alone, will get you a max of 200bhp. cams and a flowed head might get you another 20, on a good day, depending what cams. What cams are they?