Checked my couplers, all 4 are good. My plugs are gapped at .36, same as the previous plugs. I think that the culprit might be my air filter. I think it needs a cleaning. We'll see here in the next day or so after I clean it tonight and let it sit out in the sun tomorrow. But yea, both problems that you mentioned in your last paragraph happened right around the same time.

Edit: It's a draw through system that I have