Update....I was able to verify that the timing is set at about 4-5 degress advanced with the vacuum hoses plugged. It raises to about 6-8 when I plug the hoses back in. The 4-5 degress advanced is as low as I can get it as the distributor wont swing any further....just as engnbldr suggested. I drove the vehicle for quite while yesterday and while it seems to run ok at lower speeds when revving the motor up it seems to be held back. feels like I am pulling a big load while progressing through the gears. Guess I will have to recheck the timing chain.