I'm thinking I put too small a cam in my 360 Magnum...

@Brooks James
One of my friends thought he had a hot 340 .
His car is almost like mine, a 68, 4-speed street-Barracuda, except
his is an iron-headed 340, has a slightly bigger cam, a 2x4 tunnel ram, SS springs, and borrowed 4.30 gears (mine). It looks and sounds, pretty intimidating.
My car is an alloy-headed 360, 4-speed, Fresh-Air, 750DP/Air Gap/and has 3.55s.
We went to the same 1/8th-Mile track, on the same day, for a TnT.
I ran 4 times, with only one halfazzed complete run, with two mphs hovering around 93 mph, one run in which the timer did not work, and one run in which I missed a shift and just circled back. Afterwards, I went for some famously crappy track-lunch with my son, and we watched my friend flog his car.
Make no mistake, my friend had been tuning his combo for weeks and even borrowed my 4.30s for this event. His car hooked real nice. He worked tirelessly all morning to go no faster than 89.
My car was almost exactly as I drive it on the street. The only difference was, that I dropped the exhaust to get the weight down to 3457/me in it, which about matched his weight..
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Carburetors are rated at a certain pressure differential. If an engine pulls harder than the differential, it will pull more cfm. If it pulls less than the differential, then it will pull fewer cfm. If a carb is rated in DRY Flow, it will not pull the same as one rated for WET flow.
If an engine can only pull 600 cfm, and already has a carb that can deliver that 600, then it will not make significantly more power with any arbitrarily chosen, larger-rated carb.

With as small a cam as you are considering, (274/286/113 IIRC) even a 750 is more carb than your engine needs.
(360 x 5500)/3456 = 574 ........... at 100% VE, which is what you are targeting to get 360 Hp NA..
Now rightaway somebody will jump on me saying; "everybody knows that formula doesn't work on Mopars".......... which is why we all put 750s on our Mopes........ cuz we all over estimate our lil SBMs.
Well no, the problem is that we all fail to recognize that
the formula is 100% accurate ,
and it is the ratings on the carbs that are not being matched, because most of our combos are sucking; low-density, hot, under-hood air, and not making the rated pressure differential, which most likely
was a dry rating anyway!

BTW,
A long time ago, I had a 276/286/110 cam (223@.050), and in my alloy-headed 367@11.3/1Scr, that combo was ferocious; and remains my all-time favorite combo. She was a real clutch-buster....... well actually she just busted everything behind her. One piece atta time she emptied my parts stash.
But in my combo, the powerband was long and wide and centered right around 5000. That is an awesome characteristic for a street engine,
but is NOT a particularly good racing cam.
Your chosen cam might be good for N2O, IDK anything about that stuff.

Happy HotRodding