Bad plugs is a likely culprit. Check the plug wires and the cap and rotor.
I have put new plugs and wires on. I'm gonna check the cap and rotor. Someone suggested it may be intake gaskets. I'm willing to try anything. The code just says misfire.
Try the cap and rotor first. Use some carburetor spray to find vacuum leaks. https://www.2carpros.com/articles/how-to-use-an-engine-vacuum-gauge
The #7 plug had some crud that kinda looked creamy but not wet. It was baked on. I cleaned the plug and switched it. Do you think antifreeze could get in there from the intake gasket?
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