machine shop suggestion needed for drilling side draft intake man

[Stowe, Ted-SEA]

hi.

I have a cast iron intake for a inline 4 cyl that I would like to have
drilled for injectors.
it is a challenge to make this work and if I had a manifold to practice on
I'd do it myself but I'd rather have someone who knows what they are doing
handle it.

(cast iron, thin, and the surface area is curved)

can anyone give me any suggestions for speed shops , or whatever that could
do this ?

thanks. Ted.