[driftR]

hey everyone, i jus recently melted a valve, and the plug too, in the sixth chamber, this is jue to the ignition timing im told? so ive ordered a apexi fc ecu so i can get it mapped and sorted out? so i replaced the valve , headgasket etc, went to start her up and its running very lumpy and the idling is unsteady??? what could the problem be?? any suggestions would be very greatful, cheers guys, oh yeah its an rb20det.

 

[plkettle]

hate to suggest it mate,

but could the plug tip have dropped off into the cylinder when it melted ? I unfortunatly had this happen on my old 33gtr when i upped the boost a tiny bit with std plugs in