hi i have put a set of cossie plugs in my rs (oe)runs fine on idle but under boost misfires what should i set the plug gaps to at the moment there as they came out of box -----put my old plugs in no problem runs fine but there due to be changed any help thanks

 

I used big turbo escos plugs once in my old s2 set the gap at 0.7mm but they didn't last long.

 

cheers fella