I learned how to launch or take off by riding dirt bikes all my life.
The first thing I would do is study your dyno results and determine at what RPM range your bike makes the most torque. Torque is a measure of how much a force acting on an object causes that object to rotate, i.e. torque turns the rear tire and gets you moving.
My dyno chart indicates that my bike begins to make substantial torque at 5,000 RPM. It continues to produce increased torque up to about 11,500 RPM at peak. Then, it gradually tapers off. The difference in torque in that range is about 12 foot pounds. So, I know that launching in that 5k - 11.5k RPM range is good. Anything below 5k and above 11.5k is a waste. The higher in that 5k - 11.5k RPM range I can launch, the more torque I will have available at the rear tire. I recommend making an indication on the tachometer with a paint pen so that your peak-torque RPM is easily located.
Presuming your race, you'll want to locate the proper box to line up in and get to it. Placing a piece of tape on the tank with the box number for that sprint is helpful.
After you've lined up in the box, slide as far back in the saddle as you can get so you don't slip backwards when you ease off the clutch.
Plant your feet in a normal stance. You don't need to place your feet as far back as you can get them. You want to minimize the distance that you have to move your feet to return them to the pegs. Drag racers kick their feet way back, but their pegs are in very close proximity to the feet when placed on the ground.
Lean forward like you're tucked in for a long straightaway. You want to load the front-end with weight to help keep it down, if you are too aggressive with the clutch and throttle. You also don't want the tank smacking you in the face. If the bike wants to wheelie, you want your body to come up with the bike, not the bike come up to you.
Now, it's about feathering the clutch and working the throttle. Regarding the clutch, you're working between the area when it's is just starting to grab and it's about half engaged. When the clutch starts to engage, you are placing a load on the engine and RPMs will decrease. You'll want to give positive throttle to keep the RPMs up. It's been my experience that:
By this time, you should be moving. Now, you need to return your feet to pegs to cover the brake and shifter pronto! This is a very important step. If you've launched properly, you will be upshifting pretty quickly. If the bike wheelies badly, you can tap the rear brake to bring the front end down, else ride it out, if you're comfortable. You can also disengage the clutch to remove the wheelie. Do NOT chop the throttle!
Don't forget to steer!
Pick your line and fill in the gap. If you've launched better than the other riders, you need somewhere to go. Open space, preferably on the track surface, is always a wise decision.
The rest is history...
Ultimately, knowing the right combination of clutch and throttle to execute the perfect launch is nothing anyone can tell you. You will have to learn by yourself. You will get to a point where you can judge RPMs by feel. A test & tune night at the local drag strip is a perfect place to practice. Riding dirt bikes is great education too. There's nothing like throwing a 30 foot roost in the mud.