Originally Posted by mustang 671
that sounds a good plan . as i havent been to the dyno yet i hope it will be just a fueling and timing issue slightly off ?
also is this normnal on a blown motor ? do they suffer from this ? i have 1x stage colder plugs than normal
You can take a good look at the plugs to see if they show signs of fouling. I wouldn't call it normal, at least not for a sorted out tune up. But seeing as how you're just beginning to get a handle on this, I'd say it wasn't that unusual. Especially if its only been idling and no real load/heat put on it. Before changing anything on the tune up, try the interrupter first. If you still have the same issues then you can get further into it.