I have a set of 850cc injectors and a modified primary rail I woudl like to put in mycar, but I asshamingly will admit that I have never actually learned how to manipulate my PFC nor do I have a good base map for my setup with the 850cc primaries. Is there anyone in the SD area mybe even LA area who is comfortable tunning for this type of upgrade? Or is this something simple like use the map you have and enter 850cc injector size into a menu somewhere?