I purchased a Willy last year, not the best example of a Williams 1 and needed quite a bit of TLC (money!!!) however all done now and the body work and paint is mint as are the refurbished alloys, treat it to a new exhaust and for the first time in a year I am actually now liking the car I always wanted (it was initially bought as a project but when 'she' decided she wanted a new house my P1 was sacrificed).
Anyway, thats the boring background, am thinking of an induction kit so a) how much better/smoother performance will it offer b) how much impact on petrol will it make. Had one on a valver 12 years ago and seem to remember it making a bit of a dent on b).
Also, and I know this sounds really bad, I get about 280/320 miles out of a full tank, I can't get anymore technical than this, is this about right?