Hello all. I have a predator 212 with a stage 1 kit installed. Open muffler and air filter with adaptor, #90 main jet, 0.020 pilot jet, autolite racing spark plug. Engine runs very well idling and slow acceleration. Issue is if you stomp the throttle it will stall and cutoff. I have tried removing the air filter and gas cap but it doesn't change. Carb is squeaky clean with fresh gas. Any ideas on what this could be? (I have video but it will not upload)