Need Opinions. Have nothing to compare to.

Go back to the original owner and see if he found his info. Find out if the cam was degreed, if he doesn't know what your talking about assume it wasn't and degree it in. At that time the info on the cam should be seen on the snout so you'll know what you have there and where to degree it. 2-1/2" exhaust would help.

FYI, Dyno's are a tuning tool, you could drive over to a shop across the street and see a 25hp difference either way. If you do changes, go back to the same dyno, as long as it maintained and the operator knows what he is doing you should see results, good or bad.