If the CS130 is good, it will work correctly if it has a switched 12V going through a 470 ohm, 1/2 watt, resistor to pin B. All the people that put an LS engine with a carb setup in an older car have to do this to get it to charge without burning up the alternator. Without the resistor inline, the alternator will be on borrowed time. With the resistor inlne, you will probably get around 10 volts to the alternator to (turn it on).

85 MCSS, 02 5.3/4L60E stock daily driver,84 MCSS, Another stock 5.3/60E.