Results are in on my 272.  Currently at a .030 over 272 3.65" and looking to go to a 312 3.8".  Machince shop prefers at least .125" after bore and is pushing me towards just doing a 292 3.75".  They were most concerned with the passenger side at .184" and the concern of hitting a water pocket.  Attached is the sheet below for veiwing and recomendations.  Truck will not be a racer but don't not looking at having to pamper it either just becuase its a 312.  Thanks Bing   

 

Warsaw, IN