#8 plug keeps fouling,why?

Did you mess with the jetting at all?.... If not I'd jet it down a couple.

 

No i havent,should i go to a 69-70?

Thanks

 

Post a picture of the current plugs...... they will help tell the story.

 

Rich,isnt it funny that #8 is the one thats bad usually?shouldn`t they all be as bad if it were a jet issue?

Thanks

 

I've had this problem before. Fuel fouling #7 and #8 on mine. Tried everything you are going through. It was the carb.. Fuel puddling and would run to the rear and in your case go down #8. Since your now running a B4B i'd say something is happening to that side.

 

o No:

 

It depends on how bad the rest of them look as well. On of the problems with the B4B's is Air Fuel distrabution to some cylinders (some will be richer than others). I'd pull all your plugs and take a nother look. I'd also check your float bowl level (while the car is runing) to make sure they are not set too high. If it's a pudling issue, that could be the cause.

 

The rest of them do not look as bad as #8,i think this manifold may not be working for me and it could be the cause of this problem,this has been going on since i switched to the alum.heads and intake from an SP1 to B4B,i dont understand?o No: