Alright guys I got my injectors in today and put them in. When I went for a ride in my car the idle was low and when I would step on the gas it would sort of miss like if to much gas was going in, my buddy was in back of me and said that my car was blowing black smoke and it never does. So I think it is running to rich and I don't have a wideband. Before it just had a high pressure fuel regulator set to send more pressure and fuel to the stock injectors. Could it be that the pressure regulator is set to high with the 370cc injectors and I need to set it to a lower pressure setting? And if I do how to I adjust my fuel pressure regulator?