Hello

My 1914 Scott is running well with a later needle type carb but I want to make it as close as possible to the period.
I got meanwhile three 3-Jet Binks carbs in different states and one looks like having been used on a scott as the jets mounted are exactly the sizes as described in Mr. Binks booklet for Scott in 1914.

There is also a number stamped on the main throttle body. There are two different numbers on the three bodies I own: 8 and 16 together with a B or maybe an R. The 8 was in the carb with the correct jets but that does not necessarily mean it is correct.

Please
does anybody know what is the correct body?

On one of the carbs there is a vertical lever to open a hole at the bottom of the main body. Looks like some extra air intake. Cold start? This lever is not described in the Binks booklet. On another carb this hole is closed with a plate.

If somebody can help me this would be great.
Thank you and

kind regards

Wilfried