With the new engine for my truck, i'm also going to be replacing the rotted exhaust system as well. The new engine is a 400+ HP 350. I plan to use headers, 2.5 inch dual pipes with a crossover. The dilemma i'm having is the choice of muffler. Basically the sound i'm looking for is that 60's muscle car sound thats loud enough to be enjoyable and not obnoxious.
At first I was planning on flowmaster 40 series, but I was warned that they would have an annoying deep resonance at cruising speeds. What brand and model of mufflers is going to let me hear the choppy idle my motor has, stay tolerable at crusing speeds, and sound great at WOT ?