If you can't get your engines' idle low enough to get it to stand still, you might want to consider an MIP 4-in-1 clutch for it. It can be set one of four ways, and has a spring on it to help it disengage fully at idle. It only costs about $5 or so, if memory serves. It'll fit the stock flywheel/clutchbell. You'll need to remove two shoe-pegs on the flywheel, however. A large pair of channellocks works perfectly for this.