I have been doing some basic tuning on a 8.1L with the Allison. I have only worked on the the PCM side. Basically, I played with the timing and burst knock. I also tried to eliminate torque management. However, now, shortly after it shifts gears, I get a throttle surge like the area circled in the attached log. Basically, something is giving it a quick burst of throttle. Any ideas on what would give it such a burst? It runs well accept for an occacional throttle burst. Thanks, Dallas