The short story is I am running 1.6 valves in my 8BA, bought the high compression Edelbrock heads. Test fit and spun the crank and my exhaust valves are scraping the insides of the heads. I didn't bend any valves but I need to clearance the area around the exhaust valves. Here is my question. If I buy Big Bore head gaskets, will I have the extra clearance around the exhaust? The current standard copper gaskets are right next to the cutout for the valves on the head and I don't see how I can clearance that area without leaving some of the head gasket hanging in the combustion chamber. I literally only need about .050 room to get the clearance around the valves. Any suggestions would be appreciated.