Not too great right now but a work in progress. Here's the 5.8 liter V8. K&N High Performance air filter in stock intake. Dual batteries with isolator and 200A alternator.
Main battery powers car, 2nd powers sound system, inverter, and ham radio equipment. Sound system includes Pyramid PB1038GX 4000 Watt 4 Channel amplifier with dual active crossovers, driving 2 Kenwood KFCW3011 12" 1200 Watt subwoofers. 1/2 of the amplifier is currently disabled, but I chose to get it and have room to upgrade woofers.
Also is a Vector 2000 Watt inverter, and an Xbox 360 with 7" LCD for the back seats.