I run it in my 360 -

stock long block with an eddy street ram and 2 holley 390's on top - 3.23 gears and 26" tall tires

I get 14-16 mpg on the highway - 3400 rpm @ 75
I run 1.74 60'
12.56 was my best et
108 was my best Mph

I pull 9-11" HG at idle in gear / out of gear

I like it.