Jersey, do you have another intake manifold you could play with? If not, I have one that you could have. I think it's better to have a custom fuel rail and mod the manifold to accept o-ring injectors. This way you have a huge supply of cheaper injectors to choose from. (look on GN boards) I think I had the machine work and custom rail made for about $100. Then you can change to any number of different size injectors when you upgrade the engine management, turbo, or intercooler.
Joe