Yeah basically what he said /\.
Ive had the exact same setup on a blacktop motor and a silvertop motor. As in, same throttle bodies, ecu, flywheel, ignition, clutch, cooling system, exhaust, fuel system. Everything.
They drive very similarly, with the silvertop having a slightly more satisfying time from 4500-6000rpm. The Blacktops are definately better over 6000 revs. Smoother, just happier. Put it down to the rods and lift I guess.
Peak power was around 7400rpm with the blacktop, and around 7200 with the silvertop. There really isnt much difference once you use all the same kit.
As for how it works in the car, Id have to say, even with a less than ideal tune, the Blacktop wanted to rev out faster and feels like it has more potential.