Stock magnum bottom end with tricj flow heads what cam?

It is your money and I say risk it! I don't care if the cylinder head has more ability than your short block or camshaft. If you can afford the expense and it won't cause any family financial hardship, go for it.

Anyone who has the desire to build engines on their own should do it.

In the 1970's I built a 292 Y-block Ford for a friend. At the fire up for that engine there was a man standing by who built engines in NASCAR. When the engine started he walked around it for a while as it was running. He ask a few questions about what I had done to the engine and some questions about the assembly process. He then told me to stop by his house before I went home where he offered me the opportunity to build a NASCAR engine with him. It never did work out but it was a compliment.

More relevant to this thread though is the fact that I found out, on my own, that if you go from a stock hydraulic flat tappet camshaft to a Comp Cams 260H hydraulic flat tappet, you could gain 40+ peak horsepower in a 8.2:1 compression 360. And if you change the stock cam to a 509 in a 7.8:1 compression 440 you could gain 50+ horsepower, AND if then you switched to mildly ported iron cylinder heads you could gain an additional 60+ horsepower.

Sorry, I cannot recommend a camshaft for your application, I just don't do that for engines I don't personally build.

But if you want to experiment and build your own engine, I think you ought to do it. I think we need more people like that.