340 muffler decision

Took it out for a test drive today..It's a lot quieter than I expected.. Nice sound at idle without the "pinging".. Inside the compartment while driving was quite nice, no evidence of a drone. Upon hard acceleration I noticed more of a glass pak sounding "brapp", not sure how I feel about that, only time will tell.. So far so good, now just need to wait for for warm weather to take it cruising.. Thanks for all of the advice..