Yeah, that could be the benefit of having so much split. If it was my engine I'd try a cam in there that I think would be good and then I'd know. I have a feeling that the cam specs I think are good might not make as much power as the cam that is in there. But that is how you learn.
I'm converting it over to a crank trigger now since the distributor had some spark scatter. The owner is waiting for a new Reid case Powerglide so no rush on getting the engine into the car. While I have it in my shop I'm going to tidy up a couple of things. I never liked the way the dry sump pump was mounted so I'll build a new bracket for it and clean up some of the plumbing.