From my classroom training 30+ years ago, you are correct, this is defiantly too much gain, hence the overshoot. I have thought about the bigger radius on the throttle linkage but haven't wanted to anything that looks homemade. The BBK throttle linkage/bracket looks like the stock GM one I replaced. I know I need to weigh aesthetics versus function here. I think the gain is controlled in the module that is under dash. My guess is there is no way to modify it. The servo has a variable inductor that gives that module position information. I doubt adding an inductor in series of that circuit or a cap in parallel would affect gain. But if I could slow the servo down, I think that may work. Maybe a flow restrictor in the vacuum line to the servo could do that? Any ideas??
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