Well i see you have been to the web site. But Yeah it's a wide gap between Our Head bolts.
Part of the main reason I did teh fire slot/groove in the piston is to get the spark/flame front to the other side of the dome easier. I used to do this all the time On my Big&small blocks with pop-up pistons.
Well the first time i ran into this personaly I Burned .010 right out of the head ,Never hurt the block Only the gasket and the .010 groove into the head. much later after that I had changed the head from the 194 to a 250 bring the compression back under the 13-1 plus mark to around 12-1 Because at the time i didn't feel like Oringing the head.