Hey Feets, the answer is yes and no.

Which you do you think will get better gas mileage?

1. 400 inch motor, 4.56 gear, 5000 stall, big cam.
2. 400 inch motor, 3.55 gear, 2500 stall, small cam, 76 mm turbo.

Everything else is identical with the exception of noted above.

I am curious as to your reply.

Whatever your reply, I won't dispute it.

My point is that with a turbo (and my example is based on a 600 hp combo, not a stockish type setup) there is the ability to drop rpms that will in turn give the increased gas mileage. A poster replied to my statement and claimed that dropping rpms will not affect gas mileage then attempted to compare a 1.8L motor to a typical Mopar motor (even though at his on admission there was not a compareable motor) and then to a Dodge Ram truck!

I didn't make any of that up! It is all on this post!