Quick Update :-
With standard airbox the engine kept cutting out due to oxygen starvation ... so i have got a new air filter for it for the time being :
Improved the acceleration and general smoothness of the engine a great deal ... please ignore the horrible battery ... collecting a battery jacket later in the week so that will be nicely hidden away. Also the new bonnet lining has dropped alot of brown dust onto my engine

iv just this minute sprayed engine down with engine gunk and ill go out in 10 mins and rinse off.