That’s interesting, because the standard factory ratio was .95:1 for the water pump pulley. AC cars were overdriven at 1.3:1 or 1.4:1. But they also got a water pump with only 6 vanes, versus the non-AC cars that got an 8 vane water pump and the .95:1 ratio.
You got me thinking about my earlier post, I should have said A/C has a smaller pulley- I knew it was overdriven, but had a "senior moment" and erroneously wrote "larger pulley"... I edited my mistake to reflect my brain fart. Thanks!