Need some advice on some cylinder head gaskets

No. But it would be advantageous to have the least amount of wasted
Negative Sir. Timing is more of the issue at hand, not quench. He could run a flat top zero deck piston with a .030 head gasket at .010 more bore size than the cylinder and a closed 63cc head while adding boost.

Now the amount of boost could be limited due to timing limitations. If the timing could be taylored correctly, he could still run 15 lbs. of boost.

At this point of running boost, I, myself, would run a forged slug.
Yes Sir I agree ! But, since how I don’t know what pistons the op has and I don’t know whether he has a zero deck , and there is a whole host of other things that are unknown I was just letting the op know that running a thick head gasket can give him more quench then desired ! You may have built this engine and know exactly what the op’s motor is I don’t know ! The facts are though if the op has to much quench or if anyone has to much quench , that can lead to a detonation problem ! Didn’t know if the op or anyone else knew that or not ! Since the op is not doing a motor rebuild just pulling the heads off , this could be some good info to know !