The cam may be a bog standard cam, despite the sticker, with the carbs being twin 40 DCNF this would be a full race spec set up, if it's a std 1.3, or even a cammed 1.3 it is massively way over carbed, as an example the std mk1 xr2 1300 has a 24/25mm venturi carb, you have 4 venturis in total of 32mm each, it won't work in a million years, but will cost the earth to run like a bag of shit, even 1 of 40 DCNF is to big by a long way let alone 2, I'd be taking the engine apart and seeing exactly what is what first.
tabetha