I want to figure out as much as I can B4 pulling head for 3rd time especially since head gasket cost $350. When I put air pressure in injection hole #1 it's easily leaking into coolant ( and prably slow drip into cylinder). Is there a way I can pinpoint where it's leaking if its head gasket or possibly cracked head by filling water jacket at 1/8" increments and testing or other ideas? I bought a inspection camera but think it was a big waste of money. Also is there any chance of it sealing if I retorque head with engine hot at Max 130 ft lb? Or will it make gasket less likely to reuse. I retirqued at 120 with engine cold since it requires taking rocker shaft off. Also how critical is the fire ring for sealing and does it butt tight and against head or have slight gap? I replaced the sleeves and it is a new head gasket. The #1 only fires when under a load warmed up so theres a pretty big loss of compression. No chance of hitting at high idle.