Dynomax Super Turbos Suck
After 38 years of using Big Daddy glass packs, Walker turbo mufflers, and Midas Turbo Kings on my 69 340 Swinger....I really got tired of loud exhaust. Now I'm using reproduction 340 'A' body mufflers from Accurate. Sounds a lot nicer and quieter.....and didn't affect performance any at all.