A box upper is an intake that is welded together out of sheet metal and instead of having the huge thing hanging over the drivers side valve cover it just has a box that the TB bolts onto and then 8 ports going to the lower. You're supposed to gain mega high end power with these I believe, is that right guys?
Check out this pic, and see if you get the picture.
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Michael Black
Quantum Motorsports
Norman, Oklahoma
1988 Merc Cougar 5.0 HO, P&Ped heads, 2.25" custom mandrel bent dual pipes, T5 five speed tranny
15.43 @ 91.08mph (not shabby for a 3600 pound car)
60' 2.453 Street tires suck!!!