Hey everyone, looking for some advice here on a standalone engine setup. It's got a gm standalone harness for the engine and has a power glide behind it. It does have the vss sensor hooked up.

Problem is it at a certain amount of engine load it just closes the throttle blade. Give me some advice on what to check first. Do we need to fool the computer to show gear? Any other sensors that need to be fooled? Is it just a torque management setting? Looking for any help possible.

Thanks in advance