1992 Dodge Dakota 5.2 Magnum advice

Your 255s are ~27 tall, so ~85" roll-out. For your combo;I would consider 4.10s, because;
The effective starter gear will be; 4.10x2.45x24/27=8.92, but the TC will kick in another ~5%, so,9.38. But the instantaneous ratio at zero mph could be as high as 15:1.. You will need a SureGrip
IIRC, The 5.2 power-peak is about 4700rpm, and you can stretch that, in first maybe to 5000, so;
At 30 mph,and at kickdown, the Rs will jump to ~3900 in first gear which will climb to 4800@37mph. Then at the shift the Rs will drop to ~2800 in second; so that's a bit of a hole to climb up out of.But second gear will get you 60@4650 at the top;very close to perfect . I suppose you could use 4.30s for max effort, but that will hurt the KD at 30mph.
And 4.10s will cruise 65=~2300 in loc-up.
If the take-off is too weak FOR YOU, at 9.38 effective TM, with EFI, and the factory TC, and a SureGrip; then a higher stall TC is next.
If you swap to a carb,you will lose a ton of low-rpm torque; Hughes Engines shows a loss of~50 ftlbs@2700 on a 5.9,when giving up that EFI BeerKeg intake. So on a 5.2 figure on a 40/45ftlb...... That is probably more than 10% loss..... So;budget a higher stall TC for sure; a 2800 will more than cover it..
Of course with a 2800TC, you wouldn't need the 4.10s anymore.............. But I still like them because it's the right gear to hit 60 mph with. And the 2800 will lay a lickin' on the tires, off the line; of that, I am sure. (Even with 3.55s the tires would scream.). And you have both a loc-up and an overdrive so it's no biggie to drive 4.10s.
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FWI
I had a 92 LWB extended cab Dak up to about 5 years ago. 5.2EFI/A518/4X4/ 235/75-15s on it and a 3.91 SureGrip. Great truck! Not a tire fryer, but a good amount of tirespin for sure; even with close to 300,000 miles on the clock. I miss it every now and then.That BeerKeg-intake really works.