Are you looking for a box that has two tuning points all the time, like an ABC or vented bandpass, or are you looking for a dual mode box that can be tuned low for the street and higher for competition?

__________________
Paul Niwranski
1966 Cadillac Superior Crown Royale Limousine Hearse

If you're mirrors ain't shakin...you got taken...
RIP Member #8
Be careful what you wish for...