Thank you guys for all your input. Looks like I'm gonna get the volant intake, Thorley headers (they come w/ the y-pipe, correct?), and Wester's PCM. In that order, but as cash permits.

After that, who knows?
PS: Just wanted to know....throttle body spacer or new throttle body? The CFM Tech bored out trottle body looks nice.

97 C1500 Ext. Cab 5.7L, MSD 6A and Blaster Coil using Super Conductor wires, Flowmaster American Thunder catback, Volant Intake. Amsoil 5w-30 synthetic oil, and Wester's 93 Hot Tune.