Originally Posted by ChrgrCuda


Following this thread as I also have a Holley Sniper and dual electric fans and I'm dropping below 12 volts at idle when the fans kick in with a 100 amp 1 wire alternator.


That doesn't surprise me. Check your alternator output with a clamp on ammeter and see what it is putting out at idle. I bet it isn't producing anything close to 100 amps at idle. Maybe only 20 or 30 amps. It isn't uncommon for one wire alternators to struggle at idle.