Norma Single pickup strat 60s - Burst

Pure surf rock, grunge, or punk right here! Vintage 1960s Japanese made Norma guitar.

I bought this guitar as a project and have gotten her playable again, but she still has a little bit of a ground buzz. Still has the original Norma pickup. I’ve replaced the pots with 250k CTS pots and she has a new Pure Tone output jack. I’m not sure if the buzz is coming from the pick up or if I have a bad cap or what. But before I go and replace the pick up with something original, I figured someone out there might appreciate the vintage vibe and want to fix her before I replace the part.