At this stage it might be a good idea to have digital profiles made of your cams, flow test results from the cylinder head, a measured compression ratio, and rubber castings of the intake and exhaust ports. Then, a virtual model can be made of the engine in an analysis program to figure out the answers. The big benefits are getting the model, but more important, the things you learn about engines from reading the program user's manual and working with the example data sets that are included with the program. This is a lot of "up front" work that saves time, money, and frustration in the long term.