The injector angles are the exact same as the stock ones were. I can mimic having injectors spray at each intake event and optimize the flow but it honestly wont do anything considering most people run thier injectors past 80% duty cycle which is around when they would start spraying on the back of the valves anyways.
I have never made anything with the 3d printers so I guess I will talk with the people that will do all this for me and see what they can crap out for me. They also have some different CNC machines that we could use to make the flanges. Currently we are planning on making the flanges and bending the aluminum (Or angling straight pieces and welding) and then buy the correct size cone (Apparently they make a bunch of cones premade out of varying thickness and taper).
We were thinking of making everything Aluminum but we could do stainless but I think it would start to weigh a decent amount with stainless. Our other thought was investment casting. This would ensure the final product is extremely smooth and would look perfect and not be grainy. I am unsure on what the prices of everything will come to but the investment cast seems like the best way to go if I can afford it. Otherwise we stick to good old welding
About anodizing it, obviously we could do that for anyone. They could even choose the pretty little colors
We will make some fuel rails and things as well that could be anodized on both sides so methanol wont corrode them.
As for the methanol injection guys we will most likely have some options to have a nozzle on each runner so the methanol can be sprayed equally amongts each cylinder. This was a big concern I had when I was using meth injection... You never know how much gets to each cylinder.
Whatever we decide to do it will work. If it doesnt we will just make another one until it does. If we decide to go with investment casting all the proto-types will be just welded aluminum for testing. These are also the manifolds we will dyno everything with and/or send to vendors for them to test as well as us.