fouling plugs

[jpayne]

Guys I need some advice...maybe not escort related...
The subazuki, after tuning continues to foul plugs, its using BPR6ES and uses a set per tank. it gets to the point of failing to start until a new set is installed. cleaning the old ones doesn't seem to help
which direction should I head, hotter colder other?
New plugs and it fires instantly.
It probably spends too much time pottering about the suburbs for a 'race' engine.
It has been dyno tuned by a reputable mob...
Any help appreciated
Cheers

JP

[Danny M]

I'd be going back to the dyno as it's sounds like it's running far too rich