What? 'Nother 360 magnum on the dyno?

Put some 2.5" tubes, noisy turbo muffs and no crossover of any kind and it will sound choppier.
40 series Flowmasters are the best for obnoxious sound.it will for make the car sound loud and fast. I had them on a 71 camaro long time ago with a stock 350 and it sounded like an 11 second car but only ran high 15's.