A body 67 cuda 360

Right now the 360 is in a Dodge pickup with a stock Carter AFB carb stock manifold cuda still has it's original formula S 273 that I'm pulling for the 360 because it has 128 thou miles and uses oil badly I'm considering eldelbrock top end upgrades to 360 before swap. I'd like to keep the upgrades down below 3 grand . So my plan is to keep 360 bottom end untouched hopefully upgrade to eldelbrock heads /cam/lifters/ and carb . Just ordered Doug's headers this is so i can possibly drive it to Chrysler nationals

I suggest storing the original 273. You may want to go "numbers matching" sometime in the future if your Barracuda is an original Formula S.
Same with the transmission and rearend if you upgrade those as well.
Even if you don't want to go back to "numbers matching", a future buyer might and having the original driveline will increase the resale value.