I have a 1995 3/4 ton burban 4x4 with 350 that stalls for a second at any speed with or without a heavy load. It then resumes normal running. It seems to be totally random. Here's what I've changed so far plugs wires cap and rotor coil and TPS all new. I also put on a used igntion control module and ECU. So far I've not had any change in what it's doing. I'm out of ideas. Anyone out there know what I should do next?