Thats actually from last spring from a guy from the Cadillac boards. The reason the trap speed is so low is cause he let off 10-20 ft before the line on accident. He lowered the tires to 22psi for thaat run. Said the DIC was driving him nuts about the low tire pressure.
The supercharger actually blows the air out the top of it, into a manifold that goes down the sides of the blower.. It'* an interesting setup, i forget why it was done over say an Intense/ZZP style IC.