Although it is difficult to find that "sweet spot", once you do it WILL be louder than ported, despite what others may say.
'84 Chevy K5 Creative Conversions Blazer (super rare!), restored, new paint, new 355, dual exhaust, interior in progress
4-Boston RX7 5.25's
2-Boston RX7 6.5's
2-Shocker Super Extreme 12's in 11 ft^2 @ 32hz
Soon to come:
US 2000X or Tsunami 1800
7 inch screen
PS2, DVD player, VHS player
Hope to be done around the 1st of the year!!!!