Gearing ?

Stock body car, from what I can find they weigh under 3000 lbs. I was just using 6500 as a reference but I might have juggle around with tires and gears if say 6000 is more likely concept is the same.

Trying to keep it very streetable it will be a daily driver for the 8 decent months we get up here.

It just seems the smart set up would to be treated it like a 2 speed overdrive.

From what I see 3.55 x 2.45 x .89 (27" tires) is the average setup which is a 7.74 overall 1st gear ratio. And mine seems a lot smaller with 2.94 gears but x 2.74 (lower 1st) x .96 (25" tires) would be the same overall 7.73.
You shift about 6500 and cross the line about 6500 and you done and cruise home at 2400.

But I'm a first time drag racer so seeing what you guys think ??
according to Allpar, a 1965 Barracuda with a 273 (318 is gonna be pretty much the same weight), 3199 pounds. At that weight, to get to 105-110 mph, you're gonna need to crank that 318 up quite a bit or add some spray or boost to it. Doing the math using the formula HP=Weight * (MPH/234) ^ 3, you'll need 330 hp at the tires to pull that trap speed down. That's a pretty warm 318. Not impossible by any means, but a stocker or mild 318 ain't gonna pull it down.