I'm looking for wheels & tires for my '67 Malibu. A local guy is selling a set of four alloy wheels from a late (not sure what year) Camaro with 245/50R16 tires on them for a good price. Any clue if these will fit? I know how to measure backspacing, but how much will I need? These are the five-spoke wheels, if it matters.

Thanks.

Reid