Thanks for replys
the reason for this was I was getting some very lumpy running issues below 3k revs when pulling away as I have a spare c2 coil pack
it seemed worth a shot anyway problem is now solved plugs changed it wasn't the plugs maf and throttle body cleaned imrc removed and tied open precats gutted cone filter replaced with standard air box throttle cable tightened switched to premium fuel and injector cleaner not sure what did the trick but it's running great now lol
I agree with your assessment there mako loads of crud blowing out after the manifold cleaner and fuel treatmentThe only conclusion I can take away from that - premium fuel, air filter and injector cleaner sorted it - is that she was just dirty mate.
Can I suggest an oil and fuel filter change now?
The IMRC is irrelevant probably, since your issue was below 3.5K RPM. My opinion is that you have a Duratec that wasn't well looked-after before you bought her. She needs some love.