Been running my recently converted c16xe nova for about 10 days now, has been running well untill a few days ago, started running on 3 cylinders, waggled no1 spark plug lead and it came back to life so a set of new plugs and leads and its running like a tractor. Its usable at low revs but as soon as you put your foot down it just a nightmare, leads i took off were shot so i thort it would have sorted it any ideas maybe its the coil thats gone down ? or is there any other problems that these engines suffer from ? Cheers Phil.