727 vs PG

Some good powerglide info here, and some bad.
I switched over my at the time 2900 pound 1982 big block Dodge Charger around 25 years or so ago. It ran almost exactly the same with a stock 1.76 low gearset. It was about .07 quicker with the six cylinder 1.82 but that gearset only lasted 100-125 runs before it broke. The stock 1.76 gears knock on wood I never broke even running low 8.40's@160mph. Now behind the small block in my black Duster I now run an after market 1.98 and it 60 foots .07 quicker than the stock 1.76 but runs the 1/8 mile almost exactly the same 6.00 ET at 2860 pounds. I have 3 ATI Powerglide Super Cases now and tonight I will finish up the 1.69 gearset for my 572 heads-up car. Next one going together after that is a 1.80 gear-set one. The stock cases work great but I cracked one last year so I'm gun-shy.