* Gear ratios: Different rear-end gear ratios will significantly affect top speed.
* Tire size: Larger diameter tires will result in a lower top speed for the same engine RPM.
* Aerodynamics: Even minor modifications can impact top speed.
* Road conditions: Wind resistance, incline and road surface all play a role.
* Vehicle condition: A well-maintained car will perform better than a neglected one.
While magazine tests of the era might give you a figure, they often tested under specific, controlled conditions. You'll find varying results across different publications and test methodologies. Expect figures to be in the range of 110-120 mph but remember this is an *estimated range*, not a precise speed.
