Ok, so i'm not a specialist in the exhaust area. I am upgrading the car soon and it's going from a 305->355 with a roller cam and a couple extra goodies. eventually its going to be a 383 my uncle built the engine and we worked on it together its really strong. I want to put hedman longtube hedders on it and then from this point on i'm lost..will duals be better performance wise single cat or what. i also wanted to put a spintech, or moroso spiralflow on it. I want this thing to be mean and aggressive sounding with good performance (don't we all). i heard a true dual with a x pipe or h pipe would work nice. Whats your thoughts?? keep in mind i want to be able to have this thing on the street. so obviously i wouldn't be flooring it around everywhere with cops but if i'm lightly on the gas i don't think i should be disturb'n the peace

Thanks John~