The best manual for you to get is the one for Weber carbs... for the one which will fit on your car and use the original air cleaner....Have you done a search on the problems that carb has FROM THE FACTORY.... ? I have a m110 manual and a 1974 280 and I would not consider trying to fix it given how many pages in the manual are dedicated to redoing what the factory did wrong.....Have you done a search on this site for solex threads ?