need help troubleshooting Options

[johnnybravo24]

My car is a 98 gt with 5sfe. Engine was running rough on an idle then check engine light started to blink. Drove to autozone for free obd 2 test and on the way there within 5 miles I saw sparks coming from under passenger side wheel well. Turned car off immeadiatly opened hood and exhaust manifold was glowing red.I towed the car home. A hole was burned in the precat where it meets the flex pipe at the flange. I replaced exhaust manifold and precat with a header off ebay;Which fits perfectly and has both 02 sensors. I started car again it ran fine for about 5 min. I reved it up to about 4k and check engine light began to blink again and had a rough idle again. Bought OBD 2 tester and I get a cylinder 1 misfire a p301 code. I removed wires and plugs and on cylinder 1 and 2 there was fluid present but I'm not 100% certain if it was gas or antifreeze. I then checked compression cylinder 1 is at 185 cylinder 2 is at 190 cylinder 3 is at 190 and cylinder 4 is at 210. From my understanding there is a min of 145 with a tolerance of 14 psi between cylinders. So I am not sure as to where to go from here. Is it a blown head gasket or a warped head? Could it be a cracked cylinder wall? Perhaps even a bad fuel injector? Maybe a bad cap and rotor or wires? I even have a notion it might be a bad O2 sensor. Any help or insight would be greatly appreciated as I am kinda lost as to go from here. Thank you.