OD or Non OD 833 behind a slant 6?

I’m not really looking to change the rear gearing. This is not a performance car. Just a 4 door survivor that I’m getting back on the street to putter around in. I have my BB Duster for having fun. My main concern was that the 2.66 gearset with 2.76 gears would be so sluggish at times that I would have to be cautious of when I shifted. If it was a decent small block or something I would consider the lower gear sets.
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I'd go with an early 63-65 A833 straight 4 speed with 3.09 1s and 1 to 1 final drive gear.That with a 323 rear is a real sweet set up.I had in in my 65 Barracuda 225 slant six and I also have it now in my Valiant station wagon 170 slant with 323 rear . It's a very driveable combination and gives you decent gas mileage in the 18 to 20 mpg range with the 225 and 22 to 24 MPG with the 170 . You will need to change the drive shaft there is an adapter made to use a regular front universal with the flange type trans.I have one I can photograph for you if you like.I also have an extra one of these transmissions that I'm probably going to sell soon