Racked up some miles today with the new Gear Vendors overdrive. So smooooth.
141 miles miles total. Filled up again at the end and it says I averaged 18.06 mpg. Not bad for 530 horse with 3.73 gears and a 4000 rpm stall converter. I'll take that! Looking forward to seeing how it performs with 4.10 gears, once I get them built in another 742 center section.