Hello, looking for a little guidance. I have a 1971 bmw iTB 2002. I am suspecting a blown head gasket. Lots of water missing after last race. None in the oil though. And no oil in the remaining water. Any ways, i can not get the engine started. Also have a minor ignition issue. I performed a compression test, and got readings of around 100 in all 4 cylinders. I am wondering how much these numbers would change if the engine was warm. Also, are their acceptable cold readings? Thanks, Matt