Problems with Intake Manifold
 

Im new on these forums. I bougth a Skunk2 intake manifold and skunk2 68mm throttle body for my 2000 civic ex d16y8. I installed it and it works great i can fell a big difference in power, but when i stop at a light or stop sign my throttle response flutters. It goes up to 1900 rpm and then drops to 1200 rpm and does this over and over again. Again its only when im in neutral or have the clutch in. Does anyone know whats wrong and how to fix it?