I’m running a 10” aftermarket air filter I bought from Summit Racing on sale. It says Chevrolet on top. I think it was $10, and seems to be the same shape as Moroso air cleaners. I wish I had bought several at the time as I think the replacement filter elements cost more than I paid for the whole thing!
Years ago I used a 14” air filter. Nothing fancy, just something that was cheap when I needed one.
