96 GT Bogging problem, help is appreciated

[eloggia]

Adam, Thank you for getting back to me I will try to be as clear as possible, I know I was vague in my original post. My car's problem can be noticed mostly in high gear when I am above 50mph. Example, I am driving on the freeway, foot on the gas and I need to slow down so I take my foot off the gas pedal completely. Usually, in a properly tuned car the transmission would take the car's Rpm level down gradually and smoothly. When I take my foot from the gas pedal I get the sensation that my car is running out of gas. The the rpm level doesn't fluctuate or act any differently according to the gauge, but the car feels like it is hiccuping. The car will bog such as when one is running out of fuel. I have motorsport 9mm wires and plugs which are brand new. I have basically all the aftermarket parts available to and from the engine except an x-pipe. The best example I can give you is that the car feels like it is running out of gas. As far as where I live, I live really close to St. Charles, about 30 min. west of St. Louis. Thank you for your time. Eric Loggia