Help please after building my zvh i keep killing number 2 plug after ticking over for about 5 mins from cold

Ihad no issues with killing plugs before rebuild and i dont know whether this is related but number 2 injector pipe was leaking from the union on number 2 injector where it bolts to the metering head so i cut the pipe and sweated back on the connection using a heat gun and i thought everything was sorted

I change the plug and everything is fine then after about 5 mins the car starts missing and i pull the plug out and it is soaked with unburnt fuel as the plug has stopped sparking

Ive changed the leads and its getting sill changing plugs all the time to try and sort this, when the car runs till the plug goes down it is fine with no smoke lumpiness or nothing.

Any advice much appreciated

 

What management are you running? Have you tried swapping injectors to see if it moves onto a different cylinder?

 

MFI, Ive had the car 10 years with no issues whatsoever till my little ends went and now after the engine swap everything seems to be going tits up

Ill swap injectors in the morning and see if that cures it.

 

Have you had the dizzee cap off to see if its excessively burnt or anything odd on the #2 lead prong?

 

changed the injector and so far so good