Is a 64 Chevelle Malibu fast?

Depends.... If it had a straight 6 or a 2 barrel 283, no. If it had a 327, most likely, especially if it has the L-79 (350 HP 327) in it. The first truly fast Chevelle was the 1965 Z16.... It was the first time the 396 was installed in the Chevelle.