We did find out what was causing the problem?
The compression was to high 230lbs.
If we planed the head it made a majour impact on the compression ratio,we even had the machine shop port out the head to lower the comp rate. Changed very little.
Even with a new head and measureing the block thickness we still had high comp.
We also think that when the engines were manufactured they took to much of the block too get the block deck flat.
We were able to get the comp down to 176 lbs by putting in two head gaskets and a head saver shim between.040"
Yes it is mickey mouse but next step was to buy a new engine.