There are just so many variables at this point to consider that guessing will most likely result in disappointing performance and a huge waste of time, so in my mind the right thing to do as has been emphasized over and over again here is, take the extra time up front too accurately measure all areas of concern and address each of the issues as best I can.
- piston quench to deck
- piston flat to deck
- piston quench to head w/ no gasket - both ends & middle of piston
- CC cylinder heads