ok so i had a nitrous backfire an blew the back part of my intake off.

i got a new intake now when it starts it says random misfire.

i changed the plugs 4 of them were toast.

you can tell it is misfiring but it still makes power an has a small tick??

 

did you change plugs after the backfire or after you started it up with the new intake?

 

Any puffing out of the oil fill tube? Does the car stumble at idle?

 

whats the oil fill tube?

yes it stumbles a lil at idle