Need some help on pulley sizing

CRUZE 418 said
Dimensions of my 2 Dart pulleys. Approx 5 3/4" top, 6 1/2" bottom. 5 1/2" top, 7" bottom. Neither have a cooling problem. My '69 is a 418 stroker, Flowkooler water pump and Cold Case radiator. My stock 318 a/c car has a stock water pump and stock Glen Ray radiator. Both have the 2863 216/215 fan and Hayden #2947 clutch.
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Where did you find those pulleys? Do you have a photo of those setups? Are they single groove?

I haven't been able to find any single v-groove pairs that overdrive the w/p. I could be wrong, but I think the only overdriven sets from the factory all had a ton of grooves on the crank pulley.