Thanks for the graph. It still misfired for a bit even when I bled all the pressure out lol. My best guess now is MAF, Ground, Valve covers or faulty pcm. I doubt it’s the pcm like you said. I did notice what may have looked like some sort of condensation on the outside of some of the spark plug bolts I’m not sure what could cause that or if it would cause the cold start misfire. I am ripping it apart now to change coolant crossover gaskets and valve cover gaskets and the front motor mount. Anything else I should check or change while I’m this deep in? It will be getting fresh coolant again obviously lol as well as I’m gonna put in the new denso boots and acdelco plugsPlease be careful when you open the surge tank cap after any sort of driving. If the car has been run hard there's a LOT of heat built up in the reciprocating machinery - the stuff that coolant never touches - and, as it passes off that heat to the block/coolant it's possible that the coolant could warm to a boil point at atmospheric pressure. What cools all the engine guts ? Engine oil - properly operating - it runs at 190 - 220 degrees. Our engines overheat at 270 degrees - and then go into Camel Mode.
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Note that the recommended 50/50 mix line is out of sequence. Your car uses an 18 psi pressure cap, so do some extrapolation.