Originally Posted by mustangdriver91
Wait but if it was a bad head gasket then chances are that it would have more then one cylinder lose compression, and they should have more then 10psi on them sill lol they would have kinda average compression then just leak out pretty fast if its bad. But i dont think the cylinder with 10psi lost and compression or at least know from when i looked so does that say anything.
Each cylinder is sealed separately by the head gasket, it is entirely possible to have a blown head gasket only on one cylinder.
Just pull the heads and get a visual , one of the valves could have a burn spot on it. Seen it in my old f150 started running like poop with no power, pulled the heads and one of the valves had a pencil lead sized hole on the edge where it meets the head.