Can a Single Speed Freewheel fit an Old Campy Hub?

[bikeworkshop]

Multi pawl, toothy ratchet is best for flatland Bmx trick riding.
On a race style bike you're going fast enough to pick up straight away.
We stock shimano single speed freewheels.

The fancy ones are nicely engineered though, so an object of desire - and some have weather sealing, good for practical use in the uk

 

[Thame Game]

I've run the 36poe (3 pawl) ENO and the 72poe (6pawl) Trials version. I went back to the 36poe. More drag, more noise for no benefit to normal riding. The Halo Clickster is a similar product, but many of those types go over 90- 100poe, and use 9 pawls My Shimano XT hubs have 20poe, and I think my mavic is 26. Both are 2 pawls. I never even gave POE a thought. Mostly useful for close quarters slow speed stunts.
3 pawls are stronger than 2, but beyond that they work in sets of 3 to provide closer engagemant angles. They don't add strength.

That's great information. My old Mavic 577 have just 2 Pawls. Had them 30 years, still work perfect.
I'm not doing any riding that requires a superfast pickup from the freewheel.
I am modifying a Campag triple chainset to use just the inner (granny) chainring, so I'm hoping the chain line will be fine with that.