The only way to know what the advance curve and total advance should be is to put the engine on an engine dyno.
As far as I know and have seen, 24 degrees total is for a big displacement engine like a Chevy 454 on current pump gas.
Ignition advance builds cylinder pressure. The camshaft that you are using is old school and is designed with "standard advance curves" as part of the choices selected in cam timing events.
No one is going to know everything about every possible combination out there.
What I know is limited to Ford Motorsport, TFS and Edelbrock aluminum heads and small blocks up to 357 cid.
Those are all going to use a "standard" ignition pattern.
If Scott Cook is running 24 degrees total advance on a 350 cubic inch engine then that is an animal that I have never seen nor even heard of. Not that I should be a determining factor in any decision.
I am told though, that even if one comes from Mars, which the talk is that I am, the laws of physics still apply?
There simply is no scientific way to determine any of this on your engine without spending the dollars to put it on an engine dyno and prove what numbers will work and what won't?
I can understand trying to be economical and resisting investing in your own scientific research. I've done that myself on more then one occasion so certainly I'm not angel? However personally I have found that even when I have mooched info, there always has seemed to be just one little bit of proprietary information significant to a completely successful solution that has been withheld that can or does but the kibosh on it. Likely intentionally?
That's what I know, granted limited, but I have to cut this short because I am being called by someone on Zenos to come home ASAP as there is radioactivity happening on Jupiter that is effecting the spring crops on the planet. It's my Brother-in-law so I'm not really in a big hurry. He's a helpless individual who resists doing anything for himself but that's a personal thing that I have with him anyway?
Incidentally. It's a nice place to visit. No need for medical marijuana there. There is a natural hallucinogen already in the atmosphere. It's very enlightening. Gives illusions of grandeur amongst other things. 