Is it skiping on the same cylinder that blew the plug? Easy to crack a plug when installing. Did you gap the plug? Have you checked compression? Might get more answers if you post in general since it is a gasser.
You may want to check and make sure no other cylinders are missing as in maybe a burned plug wire on another cylinder besides the one you had a problem with. Heat from the plug wires will burn them if they ever made contact with the manifold at one time and cause that problem.