Just received my Blackstone Labs report with high Posassium, Sodium and Silicon with comments of a coolant leak into the oil. 
The PO had the head gasket replaced at 140K, I'm at 180K now. Looks like I'm due for (another) a head gasket or maybe a cracked head. Could it be that the PO didn't have the head milled square last time? I'm surprised to see this and am not looking forward to the expense.
Anyone know who to go to for the following work in Phoenix, AZ?
1) Machine Shop for 80's heads. Considering Kelly's Machine Shop due to a great site visit and tour. No experience with actual machine work.
2) Fuel Injector cleaning service in North Phoenix/Scottsdale area.
3) New head source.

The PO had the head gasket replaced at 140K, I'm at 180K now. Looks like I'm due for (another) a head gasket or maybe a cracked head. Could it be that the PO didn't have the head milled square last time? I'm surprised to see this and am not looking forward to the expense.
Anyone know who to go to for the following work in Phoenix, AZ?
1) Machine Shop for 80's heads. Considering Kelly's Machine Shop due to a great site visit and tour. No experience with actual machine work.
2) Fuel Injector cleaning service in North Phoenix/Scottsdale area.
3) New head source.