95LT1Z28
05-25-2011, 07:31 AM
Ok guys awhile ago I put on an underdriven alternator pulley to keep my voltage up in conjunction with the underdrive crank pulley that was on the car when I purchased it. The voltage ( on the dash gauge) was reading a little over the first slash so I'm guessing around 11.5- 12 volts. I recently installed an Msd 6al2 using the Msd coil harness to simplify the install. Now sometimes the cars voltage at idle dips below that slash and almost reaches the red section on the voltage gauge. I've also been noticing a shuttering when cruising under partial throttle, almost like a miss. Is my battery on it's way out or should I ditch the whole under drive setup and run the stock balancer and alternator pulley instead of the piggyback crank pulley. Or should I unplug the msd box and see if the problem persists.