Well, it's true that the PCI bus on the PowerSurge machines is clocked in exactly the way he writes. I'm surprised that the PCI clock buffer, the PCI arbiter and especially Bandit will work at 66 MHz though. I'm especially surprised that Bandit will still synch up with the CPU bus if you're running the PCI side at 66 MHz, but I guess it isn't too surprising since Bandit must adjust to many possible CPU bus speeds as well. They would have had to use a synchronization method which is largely independent of specific clock rates.

Oh, and I guess Grand Central and probably CURIO would need to run at the increased speed as well.