Read some cam shaft descriptions. The reason they specify minimum static compression ratios is to get the DCR in the ball park. Your reasoning is back wards. Decide the cam you want to run FIRST, then make sure your static compression is correct for that cam. Nothing wrong with post 14. If you plan on aluminum heads, you'll want a higher SCR. Now that you have the calculator, have a look at the TA cams and play with the numbers.