Finally got the new harness from Holley......Before I put it in I took the Alternator back to the Alternator shop to be checked out again....when he put it on the test rig and hooked it up with a standard 4 pin plug everything checked out O K except he said the red light didn't come on before he started the test......I asked what red light, he replied that it was the red light in the dash cluster that turns off when the alternator starts charging and if it quits working in a normal dash the light would come on and let you know it wasn't charging.......After thinking about it with my limited knowledge about how these things work I thought that maybe there was a problem with internal regulator in the alternator.......So... When I re-installed the alternator and put in the new harness and it still didn't charge.........I called Holley and asked if I could order a new regulator just to see if that was the issue......I was told they don't sell replacement parts......So.... I ordered a new Alternator.....Should be here tomorrow...Just want the problem to go away as I am sick of this simple problem that is so complicated..Got my fingers crossed

Finally figured it out.....Took the Alternator to the shop again along with the Holley harness ........ he used the Holley harness added 12 volt power to the harness......put the alternator to the test and Bingo 15 volts...Again he asked me how I had it wired up......told him keyed 12 volt power right into the harness...With the key on the connection check 12 volts into the harness.....So...He tells to check everything in the failed condition......Checked again (12 Volts) and started the car.....No charging so I check the voltage at the harness connection and it said "0" volts......ended up the wire I tied into had 12 volts power till the engine started then it dropped power......Don't know how or why......I changed to a different keyed power source and started the car and Bingo....15 volts.....everything is working perfectly now.......Sheesh !!!!!!!.... Drove the car about 50 miles and temp stayed at 185 and alternator charged perfectly......This Car stuff is hard sometimes........LOL

Awesome that you got it figured out! :biggthumpup:

If it was easy everyone would be doing it..........we knew you'd figure it out. :worship:

Great news!!! Glad you figured it out!

Ken have you ever thought about how much simpler life would be if you hadn't gone down the LS path......

Like somebody once said....... It's more fun to "Drive" them rather than "Owning" them.....
Worth every Penny and every second of effort !!!!! All because of you and Stielow....