helo everyone need sum help or advice my 90 spec turbo has started to misfire i was giving it sum beans with my m8 when it blow out sum black smoke only for a second of two as if it was overfueling then started to misfire all i need. next day went and got some new plugs,ht leads,dizzy cap and arm but still missing has really good spark so i have come to a stand still could anyone please help me on my why thanxs matt