muffler size?

Anyone know the largest & quietest 3in muffler that'll go on a '68 Dart with it's springs moved in? I know the best location is right in front of the axle tubes & space is tight. But instead of running around muffler shops & getting "expert" opinions on what's best, I figured I'd ask some people that might actually KNOW. Any suggestions?

I can't help with size but I would imagine the standard 14" case length would work.If you truly want quiet w/o strangling the engine I would consider the Dynomax VT.After that the Dyno max Super Turbo gets the nod IMO.

http://www.dynomax.com/mufflers/dyn...r_body_length=121&muffler_inlet_diameter1=150