If I stand near the engine bay and blip the throttle I hear a buzzing noise. At first I thought it was some sort of vacuum leak but I put my ear by the ignition module and im sure thats whats buzzing. It only buzzes when I first open the throtle and it seems like there is a delay in the engine response when it buzzes. Its the #39 ignition module on the 85 SPG. What could buzz inside the module? The car still runs ok and I get a good amount of boost, but the buzzing is strange.