I picked up a maritime 302 with a broken head bolt and blown head gasket. It was received in a long block condition. I verified it could crank, first by hand then set up a starter. I got readings of #1-130psi, #2-135, #3-131, #4-~0psi, #5-143,#6-175, #7-160, #8-170 psi. Pulled the blown head...