99 ss with code p0305
#1
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hi my 99 ss is pulling 2 codes, they are p0305 & p0305pd #5 cylinder missfire. installed new plug and check out wire and coil but still pulling codes after being reset. have a poor idle and just started to smoke today. after driving it, when i come to a stop where im just idleing it will start smoking then dissapear after i start going down the road then start again when i stop.its a whiteish blue color. would this be vales or rings and would this be pulling the p0305 codes. thanks for any help you can give me.