I'm looking for any technical drawings, blueprints, templates, measurements or information on the dimensions of a chevy 250 head. Does anyone know where I can get this kind of information?

I'm going through school for advanced manufacturing right now. I'm getting really good with technical drawing and CNC machining, which go hand in hand, and I would like to make an intake for my chevy 250. There's easier ways to go about this I know but I would really like to model it as well. I don't know if anyone has information like this available to them but every little bit helps.