Hi. Just picked up a '96 GTX. It runs great about 55mph and then suddenly bogs down to about 25mph. After 10-30 seconds in kicks back in and runs good again. I have replaced the plugs and even ran hotter ones. They are not being fouled out. I checked the fuel filter which is clean. I put Seafoam in and ran it several times with the same result. I have used Stabil to clean up any old gas. The compression is good in both cylinders. I am told that it is doubtful that this is a carb issue since it runs well and then cuts out. That it wouldn't run good then bad then good again if it was a carb problem. Could this be some sort of electrical or ignition problem? Any advice or troubleshooting tips would be greatly appreciated!