Dayton HO 8" woofers

[Jbiddle530]

started a SQ build in a single cab truck today i have 3 dayton reference series HO 8" woofers kinda torn though its gonna be a down firing box behind the seat. what are your guys recomendations. .44 sealed per chamber for 3 of these woofers, or .65 per sub ported tuned to 29 hz but for just 2 of them. thats all i have room for i cant port all three not enough room behind the seat. so i really am torn.. is going on old school eclipse mono block 700 rms @4 ohm or 1000 Rms @ 2 ohm so either way weather im running 2 subs or 3 its enough power. subs are single 8 ohm coil by the way