I few months ago I started to notice at idle that my gtp's rpms would go up and down between 700 and around 850 rpm. I know that it will never stop running becasue when it does go up and down it never wants to sputter or cut out. I guess it more annoying than anything. I was wonder if anyone knew what the reason could be behind that. And also a few weeks a go I started hearing this rock tumbleing noise from the top of the motor. I think it is the coupler in that supercharger. How long can I run it like that? and does anyone know how long that could take to fix and the procedure. Thanks Cameron
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