I have a 3800SC engine where a N* throttle body and SLP LS1 MAF sensor were added. The LS1 MAF table replaces the OEM table and the engine runs good enough to start tweaking the tuning. However, when you accelerate and back off the pedal the RPM's decline at a very slow rate such that the cars runs at 40 MPH before settling down to idle speed. I know that there is a throttle posiiton decay table somewhere in the GTP program but some hints on where to look and what to adjust would be appreciated. How do I adjust the throttle position decay rate or dash pot effect?