We can use this alone or in addition to the actual area of each port without taking into account the mean. Since we know all the port dimensions - including the port corner radius, the information can be feed into 2 stroke modeling software. Drawing them in is only useful to calculate the whole port area. I completed the drawings to show what the information looks like and how it is gathered. Two stroke software will be helpful to find the target values we will be aiming for.
Software is good at crunching numbers and that's what is needed next.
Check the 2 Stroke Page for places to get some of it for free. If you're a Macintosh user like me you can emulate a PC by installing Virtual PC on your Power Mac, then install the 2 stroke software onto its drive partition. I am running Windoz 95 within my G3 Power Mac. It runs the 2 stroke DOS applications well without any problems and is cheaper than buying another computer. Pay particular attention to the software at the 2 Stroke Tuners Page .