[swedishsteel]

I have 4 cars with the same Porter's mufflers, all dual's and they all sound different--two '36's with LB flatheads, a '55 Tbird with 292 and a '67 Mustang with 351w. The '36's are really different, considering the same engine, I conclude it's the difference in the cams that make the difference in sound. Bottom line.............what you hear that you like on someone else's car, may (probably) not sound the same on your car.