i have a 1989 mustang 5.0. the car is runnig lean for some wierd reason. it runs so lean that my air/fuel ratio gauge wont even read it. it only reads it when the car is warming up the morning, but when the engine temp. goes to 180 degrees, it wont read or run really lean. i have an adjustable fuel pressure regulator, which is set at 32-33 psi, w/o the vacuum line hooked up. i also have a 190 lph fuel pump. i do have the stock 19 # injectors. i was wondering if there is any way of making the car run richer w/o going to the 24# injectors? thanks a bunch guys!