Torque + Fuel economy

I've had /6s, 318s and 360s over the years that have impressed me, and I have had a few slugs among the bunch. The 360 that was originally in my son's ramcharger was hands down the doggiest 360 I have ever driven. It was a TBI which sucks in itself. But at least the 318 TBI in my old 88 D150 and the 360 TBI in my kid's 90 W250 would get out of their own way.
I've had/6s that scooted along pretty well for such a small CID engine and I have had some duds