COPO and ZL1 cars, were any delivered or ordered with the 1111927 distributor? Was curious if the distributor was the same as the Corvette issued one or were they different? I found a 343 amplifier and wondered if the Camaro amplifier unit differed from the Corvette amplifier? Was the amplifier's existing wireloom different, other than the wiring harness from the distributor to the rubber plug on the end of the harness attatched from the amplifier...? What is the relationship of this distributor vs. the 1111263 unit? I have heard of those ball bearing units too. Any thoughts are appreciated! Thanx!