Adding both equally would cause both levels to rise equally and stay balanced, if your levels were balanced to start. I didn't realize before that your alk is already where you want it to be so you should only be dosing your calcium part. You should notice the levels change as soon as the water is thoroughly mixed (a couple hours later). I believe that if you follow the directions on the bottle, it says that the recommended dosage would only increase the calcium by 4 ppm and I'm not sure about the alk. At that rate, your test kits may not be precise enough to pick up on the change until after a few doses.
Regarding the strength of the kalk solution, there are two ways you can get a kalk mixture. The first is to get a kalk mixture from the fish store and the second (much cheaper) is to use Ms. Wages pickling lime (found in the canning section at grocery stores). I use Ms. Wages in my tanks. For a strength to start off with, either follow the directions on the kalk mixture or use 1 teaspoon per gallon with the pickling lime. If you try adding too much into the solution, it will just settle out without causing any problems. As a matter in fact, no matter how little kalk you add into your mixture, some will settle out. This is normal. If after dosing kalk for a couple weeks or so, you notice that your calcium and alk levels are rising too high, then start cutting back on the mixture. I think that I read somewhere that a kalk mixture at full strength only contains about 30ppm of calcium, so if you add 5 gallons/week to a 100 gallon tank, your only raise your calcium by 1.5ppm/week.
Here is a good article about adjusting your calcium and alk.
Chemistry and the Aquarium