127-131 i belive is the lowest 150 and up is good but the # should be almost equal across the board on all six!
A...150-147-150-150-151-150 is good
B...150-130-150-147-160-145 is bad
the # in b are to far off from each other and are telling you of up-comming power loss in the near future!
most of the time a good short block rebuild will fix all this!