Thanks guys yes it was airmass and it is heavilly contaminated with oil. it turns out that the oil consumption has been getting stedily worse recently and the owner put that down to the mileage at 178k being worn out so thought it irrelevant. To be honest there was a lot of oil in the intake but being a bit thick i did not click the airmas was downwind of the supercharger .
He says he is selling the car ! umm well itl be back soon with the same problem no doubt.