hawk 7

iTrader: (2)

I have an '86GXL which I have let sit for about 6 months because I had a demo through my dealership. I have moved to another part of the dealership where you do not get a demo. I started my car up and everything sounded fine however it will not rev past 3500-4000rpm under load without missing real bad. I think it maybe my 5th and 6th ports as I cannot move them at all they seemed to be frozen. I am running a header with a tube attached to the ports to create backpressure to open them. Do you guys think this is my problem?? If it is, is there anything I can do with the pots still on the car. Thanks in advance for any replies.