The Edelbrock rpm is here.

Is your question about the Hughes cam?
The HEH1523al?
You could probably do a search at Hughesengines.com and find it but the short of it;
215 @ .050 intake duration
223 exhaust duration
Normally seen on a 112 centerline.
Lift unknown.
I tried as well,..Hughes is known for really high lifts,action ramps HERE(not stock install stuff.. Instead of all the cam swap fiasconess,just give Rusty Rat Rod,a P.M. .... Just my honest opine..(you guys ,think alike ...sort of..)

Look

So I searched for ya and found the page you need!
HEH Series Cam Profiles (Small Block)