I just installed a new style alternator from a c1500 and the serpentine set up. I wired the S wire from the alt to my existing wire running to the starter. and the L wire with 50 ohm resistor to my existing gauge wire. and hooked up the bat lead to the terminal on the back same as on the old alt. I'm having a lot of trouble with the power flickering (example if the headlights are on they seem to dim and brighten up). I also moved the block ground from the brackets to the block itself. what should I be looking for as far as voltages and resistance to see where my problem is? any help is good help thanks