the car runs fine for about 10 minutes. then when it heats up it starts to miss untill it loses all spark. i say this because fuel is fine and you smell raw fuel. i've replaced the opti and icm. holley says their ing. boxes either work or they don't. the cats are gone and rear o2 sensor. could this be my problem? i was waiting to send the ecm for programming till i could get it running right.please any comments will help.
thanks matt