Tranny, Or Torque Converter Issue?

[Lethal_Threat]

When i put my SC4 in neutral and rev the engine the car jumps forward, also if you do it while you are rolling you can propel the car forward with mid range rpm's. My SC4 has been doing that since i bought it about 8 months ago, and now its starting to have a lag in acceleration towards the top end, just seems like its screaming and having little result. Any suggestions would be nice.

[Lethal_Threat]

When i put my SC4 in neutral and rev the engine the car jumps forward, also if you do it while you are rolling you can propel the car forward with mid range rpm's. My SC4 has been doing that since i bought it about 8 months ago, and now its starting to have a lag in acceleration towards the top end, just seems like its screaming and having little result. Any suggestions would be nice.

Got it figured out guys, it was just a plugged screen in the tranny, works great now!