I see head gaskets with many bore sizes for Big Block engines.
I've been told that sometimes, the wire ring in some gaskets can lead to detonation if they hang into the cylinder bore. I have a 4.35 bore. The popular Fel-Pro .039 thick 1009 or 8519 has a 4.410 bore. They also make a .051 that has a 4.590 bore.
Is there anything wrong about using a gasket with a bore size that large? Are you better off using a gasket closer to your actual cylinder size?
Cometic lists some MLS gaskets with a 4.380 bore. Obviously this is about the closest I could go. My thinking is that a larger bore gasket would help in my efforts to lower compression.