If I'm reading this right you have a 112 lobe separation and Ken wants it 4 degrees advanced for a centerline of 108. If this is correct you were about 2 degrees advanced and now you are 5.5 advanced. If this is a low compression and/or a 318 I would roll with the 5.5 and run it.
I wouldn't call it low compression it's probably about 9 and 1/2 or 9.3... 408 with forged dished Pistons.. going in my daily Power Wagon...
If you read through this straight up I had it at about 110.5 and then did four degrees advance and I'm at 106.5..
Again I'll talk to Ken in the morning and see where he wants it...