727 or 904

Read somewhere a while back that a 727 sucks 70 horsepower

I've read similar stuff.....up to like 110 HP to drive one. Lots of variables from trans gearsets to rear end ratios, torque converters... how many fat women you're haulin around........................you name it. I've also read that the 904 only takes around 35 HP on average. That's a big difference.