HP Performance Carburetor Jetting



I bought an HP Performance carburetor for my 2-stroke motorized bicycle to replace my NT carburetor. As of right now, my NT carb blows the performance carb out of the water. I'm guessing a jet issue? It cranks right up but, lacks power, torque and top speed. Anybody have ideas about what jets I can try or even a range of them? Would it be the Main jet AND the Pilot jet since it has no power from the get go? I'm also at sea level because I know that elevation plays a role in jetting air to gas ratio.