Mike,
I have a book that I got from Piercemanifolds called - Weber, Guide to Parts and Tuning that I found very helpful with learning and tuning my webers.
Maybe call them and see if it`s still avalible(I`ve had mine 4 about 12 years). They are good folks, even if this book is not avalible they should be able to hook you up with another.
Very nice looking car, good luck with the carbs and the racing!
Would love to see pics of the car, inside and out.