Sounds like your alty may be on the fritz and has taken out the battery. Run a voltage test with the car idling and headlights on - look for ~13.8v or higher. Bad alty (diode bridge) could be discharging the battery after a run.
Other thing to check if voltage check looks ok...how much current is the car drawing from the battery when the car is off. If more than about .050 amps ( 50 mA) ...there's an issue.
+++ John's NJ Ride +++
'91 2+2 101k miles, Chromed OEM Wheels, Chrome Plenum, JSPEC Clear Corners, Toyo Proxes 4's, U/D Pulley, Custom Mod'd Control Pods - White LED Lighting with Blue LED Indicators
Last edited by jzack; 03-01-2016 at 10:36 PM.