Old horse new beating cam question

To make more power, you have to spin it faster. The faster you spin it the harder valve control becomes.
The faster you spin it the longer the intake has to stay open to allow the time required to get the air in there. The longer the duration, the later the intake closes. The later the intake closes, the less pressure she traps. The lower the pressure, the softer the bottom end. The softer the bottom end, the bigger the TC needs to be, lest the dang thing can't get off the line, commensurate with the expected performance increase.
And that takes you back to post #2, from Toolman.
The 8/1Scr LA318 is walking a thin line with the factory cam specs. In your lightweight Duster you can get away with a bit softer bottom end, since you have upgraded the rear gear 28.6%. The dual 2" pipes will be a nice upgrade.
The factory cam is a tad bigger than it specs at. But the .050s tell the story. That usually means you can go at least one to one and a half cam sizes bigger at .050, on a 110LSA with just a little loss in low-rpm performance. That would get you about a 252/110 advertised; but the stock springs won't handle that. The stock cam peaks around 4200rpm and floats the valves shortly afterwards. The 252 will want to go 5200 or so.

But IMO it's kindof backwards for your application, because first gear won't make 60 mph, and second with 3.55s will only spin ~4100rpm@60mph. First gear, in a streeter, is kindof a throw away gear with 3.55s, cuz even a stock 4bbl teener will spin a long ways thru it. If you rev first out to say 4800 in the stocker (with upgraded springs), then the Rs will drop to 2850@41mph on the shift, right about at peak torque on the little stocker. Then the run to 60mph puts it at peak power.
If you do the same with a 252 cam, it ain't gonna be much quicker, cuz at 4100 she is a long way from peak power. And without a compression boost, the bottom end may in fact be a little softer, Sooooo the upshot is that both cams could produce the same average power from stall to 60mph. Could.

SO, IMO, if you want to have a lil more fun off the line, just get a lil bigger TC and call it done. I really like my 2800, but a 2500 should be enough. The factory teener stall spec is around 1750 to 1850 . With a 2500 you will need a SureGrip for sure. With the 2800 you'll be needing more rubber,lol, and or, SS springs..
My 2cents