cost me $68 for the set, were difficult to come by and weren't available
separately.
after that costly exercise, it was still running on 7 cylinders.

after allot of cursing and screwing around, I found out that I actually
cracked a brand new spark plug when installing it, that was the cause of the
misfiring, the broken lead was on another spark plug, but still worked.

Its all good now, thank god for that.