Ok, so I was resting some screws on my dash, and managed to butter finger one of them down the demisting vent holes, since changing to a 70 dura rear motor mount, this guy is causing teeth jarring rattles during 1-1.5k revs during acceleration. I've looked for vent pathing diagrams to get an idea where it is sitting but no luck, I've tried a magnet on a wire and can't really tell if I'm even close to where it could be.
Any advice?
Any advice?
