2019 summer race.... Jadaharabi vs 318willrun

Do you cc the chambers?
No. I've had it done, but I don't do it myself. It's simple enough, though. Unless you also do all the measurements on the block/piston/head gasket, it's really kind of pointless to me.
I cannot tell you any of my cars true compression ratio. I can tell you if I knew, they wouldn't be any faster.. LOL