Here's the interesting part...at least for me. Kenny explained that he had taken the killer motor out and sold it a while back...and a junkyard motor was put in its place. But a lot of the performance parts were still there. That aluminum box is a day tank...it's an intermediate tank between the main fuel tank and the injector pump to keep up with the injection system's demand for fuel. It's controlled by a pair of Holley float bowls.
Then there's that coffee cup. It's actually there to seal off the top of the air filter...the nut is in the bottom of the cup. It sure fooled me.