Good sounding muffler for 225 cui

I second the 2 1/4” size recommendations and the Dynomax Super Turbo or other quality turbo style muffler. The slant likes to get buzzy, and I’ve experienced drone with chambered mufflers(although they sound great at idle and revving like @RustyRatRod above) whichever you choose, I would recommend adding a 18” resonator before the muffler on the mid pipe. There are also some decent resonated exhaust tips on the market but they are expensive and don’t quite fit the look of most classic cars.