I think Red is running an EM system that scales the MAF 0-5V to correlate to 0-800cc flow for his injectors. He may not be reaching the physical limitations of the MAF the ECU makes it look like 5 volts and then it knows it needs 100% injector flow.
Red, feel free to jump in here and correct me but I think we've talked about this before.
Nick, the stock ECU and most of the high dollar standalones don't scale the injectors and MAF voltage together and most don't start maxing out the MAF physically until >20G size turbos unless they have head work and free flowing setups. What kind of EM do you have Nick?