Hi,
That sounds similar to mine (without the blower)! I have T&Ds, VEC2, a Comp Cam and heads by Machine Works and the sound is pretty awesome (not to mention the NA'd performance). The lifters were a Comp Cam set. I have Crower valve springs, Ti retainers etc as well. My brothers listened to me track my Viper along with others and said mine was unmistakedly louder and "raspier" amoung the group.