I've seen A LOT of posts about making HP with a 318-So why is it so ???

One thing on here I don't see recommended much it 2.74 1st gear. I know gives a wide ratio drop and not be the best for some drag applications.
But on the street I think it would be a good thing ? Since were mostly dealing with 3.23-3.55 gears and mostly under 50 mph full throttle runs 1st and maybe a bit of 2nd gear.

I see 2.74 1.45 1 with 3.55 gears as like a 2 speed powerglide, deep gears with an OD if one existed.

1st 2.45 x 3.91 = 9.58

1st 2.74 x 3.55 = 9.72, 2nd 1.45 x 3.55 = 5.15 and 3rd 3.55

powerglide OD

1st 1.82 x 5.34 = 9.72, 2nd 5.34 and OD .66 x 5.34 = 3.55.