[Floyd]

Good hose clamps make a huge difference in sealing rubber hoses to metal outlets. If you want the original looking side screw clamps (they look the best on old cars) then the choices are : 1,NOS /NORS type originals ; 2,your old beat up ones that you painted; or 3, the readily available inexpensive clamps that almost all the vendors sell or 4, the pricey high quality ones made by A &L.
choices 1,2 and 4 will always work. Choice 3 will never work in my opinion. They are way too soft , look cheap and will almost always make a new or good hose leak.
The best choice ,if you don't have NOS available is to go straight to A & L for there properly made, good steel and cad plated ones.
If you are into worm gear type clamps, you are on you own.
My opinion and experience.