Inlet manifold for 14NV engine

[Villacampa]

Hello, good midnight. I am looking for an inlet manifold for my Nova 14NV (to install a pair or Webers). The the shape of the holes should be as in the picture (not 100% rounds).
Manufacturer is not important.
Many thanks
Jorge.

https://preview.ibb.co/ehn0Dw/Sin_t_tulo.jpg (https://ibb.co/j6rStw)