Bullet style muffler recommendation (Quiet Please)...yup, getting older lol

I ran nines with a n/a small block car thru 3 1/2 hooker aero's. They had a good sound and were quiet. I used about a three foot piece of 3 1/2 pipe off same size collectors, and turndowns pointed at each other, just in front of the axle.
They are obviously NOT bullets.
If they are just to drive around for testing, and you arent gonna race with them on, maybe a pair of the longest thrush glasspacks? I dont know if they have a 3 1/2.
I bought the aeros cause they were the cheapest "real" 3 1/2 muffler i could find.