i'm putting a pretty much stock 73 440 in a 68 dart,i have headers,and a small cam like .460 lift,and a set of ported 452's,wanting it too b a quite driver,but dont want too give up a butload of performance,what's a nice all around muffler too use?planning on running full 3"exhaust just in case i do some more "modifying"thanks for all input.