engine has a miss. Head gasket leaks oil from passenger side replaced intake gaskets and two of the intake runners were extremely clean. Coolant has a strong emissions smell

 

Check your plugs yet? Any codes?

 

yes and no replaced intake gaskets awhile back because of water seeping into the intake runner.

 

Wait, you were leaking coolant? Did you replace the intake manifold, cause it's most likely cracked. Then that coolant could have gotten to your old COPs (coil on plug) and cause the misfire. You can read the code, see what cylinder it is that is misfiring, swap the COP, clear the code and see if the other cylinder starts misfiring instead. Though if you have old COPs might just be time to replace them all cause you might have gotten coolant on some other ones too which will start malfunctioning.