[3] It sold in low volume (less
than 15 % of the HSC engines built) and was
costly due to the tooling changeover required for the taller engine block deck
height.
Also, performance tires are riding on low - profile wheels, meaning the ratio of tire
height to tire width is less
than 50 % (example: the 255 / R40 -19 optional tires on a Ford Mustang are 40 % as high as they are wide), and those
costly alloy wheels are susceptible to potholes.