727 vs PG

Absolutely! Powerglides require much lower gearing to work properly, which is why low gear sets of 1.58 to 1.72 are popular in drag racing 'glides. Less rpm drop between shifts for something that is meant to make peak power at insanely high rpm levels. Of note is the new drag race two speed transmissions based on a turbo 400, as they actually usually utilize a second gear set with ratios of 1.53 to one 1.23 for a first gear set. Top dragster, super boosted, or nitrous pro modified type setup, far outside the realm of "normal" for most of us... Lenco territory!