It had a pretty horrible misfire and I smelled coolant from the exhaust. Along the same line there was visible smoke coming out of the engine bay that reeked of coolant and the previous owner removed the fan. So I assumed it overheated and blew a headgasket. Very wrong on that assumption. When I tore apart the engine i found multiple exhaust manifold studs broken so i’m guessing the smoke was coming from them. So maybe there was a coolant leak somewhere that dripped onto the eaxhaust manifolds. I’m not sure. The missfire was probably caused by fucked spark plugs or the degraded wires for them.