I'm thinking I put too small a cam in my 360 Magnum...

It will be fine .
Get the car to hook, or 200 h/p will be too much .

Youll often find that once you build the perfect car in " theory", they're WILL be changes .
I have often built an idea/concept, that when completed and tested, that "reality" forced some changes of those "theories" . (Development) lol

I often find myself saying, - " if I could do that again, - I'd yada-yada"
Good luck .