The Weber thing is a bit unusual I have to admit, when I worked for the Ransleys they were the agents for them and had a general sort of manual on them which stated that they could be mounted a certain number of degrees in any direction. Trouble is can't remember what the angle was but do remember it was a lot. This car was designed to run Lucas timed injection but switched to Webers to try and save time, which it did not, so the angle was something I was stuck with. I had to forget setting the float level buy the book and do it with a dip stick and reference to a set mounted level. The speedo /tacho were made here buy Parrots from a photo of the real thing I down loaded from E bay!