leakdown test

I'm in the midst of purchasing a 1992 NSX (2 owner) with 55K miles and completely stock. Having the PPI completed at local Acura Dealership; compression results came back as follows: Cylinder: 1) 175 2) 175 3) 175 4) 175 5) 176 6) 176 which seems to be ok and normal. The concerning factor here...