Yeah, dilbert is right. It's just a vacuum secondary Holley with two sets of secondaries. They do seem overwhelming to many people, but they're actually pretty simple.
70 Roadrunner convt. street car
440+6, NOS, 4-spd, SS springs
'96 Mustang GT convt. street car
'04 4.6 SOHC, NOS, auto, lowered
"Officer, that button is for short on-ramps"