Good point, I know it wasn't half full, but it probably doesn't take that much to wick up into the rubber socket and start causing misfires. I'm assuming the plug is fouled now anyways so I'll tear into it tomorrow, clean everything up and replace the plugs. If it's running good after that, then I guess I'll be ordering a new valve cover gasket. Hopefully my code reader comes tomorrow so I can run that too!
Thanks for the insight. This engines kinda new to me so I'm not sure of all the common issues with them. It really helps to have these forums around