Crackling/grinding noise

[jojo-munson]

So after some tinkering I realized that I was running the engine rich. Leaned out the idle mixture screws and amazing how that potent exhaust smell went away haha. I'm slowly building a repertoire of smells to recognize at least.

But what I did find was that on the passenger side, the front bumper is actually hitting the grille. And that my bumper is no where near level. I've wedged a little piece of cardboard in there for now, but how would I fix this? The bumper was never super level to begin with, but looking at older pictures there definitely used to be more space between the bumper and grille. The way it's bolted to the frame makes it look like I wouldn't be able to wiggle it down either.