Well actually---I run the stock GM "spring inside a spring" accelerator return setup that came with the engine. In an overabundance of caution, (and because I was trying to get the engine to rev down to a respectable idle) I added what was actually a third spring from the other side of the throttle pivot out towards the front of the engine. It certainly did bring the idle down, but you needed an ankle like Hulk Hogan to step on the darn gas pedal, and then, as I explained in my earlier post, you went from zero to "too damn fast" almost instantly. As to what kind of teenager am I---well----I'm the kind of teenager that looks all around in front, behind, far as I can see off into the distance, checks the rearview mirror---- and if I don't see anything resembling a uniform---THEN I squeal the tires!!!