You have to decide what you want the car to do, and how you want to drive it.I don’t plan on taking it to the strip or anything similar but I would love it to handle anything I want it to 🙂
For example; There is nothing wrong with a high HP number @ 7000 rpm, but unless you are going to the drag strip regularly, it isn't something you use while street driving that much. It is a number that you can talk about/brag about though.
The opposite of that would be a motor built like a truck motor. Gobs of torque down low, but dies out quickly as the rpm climbs. Great for trucks, RV's and tow vehicles.
Do you care about street manners, idle /stopping at traffic lights? Are you going to want to run power steering a/c? Reliability?
Are you going to scale the motor up in the future? ie look for more power, or not?
Where do you plan on driving? Racing only, pub burner, cruiser, road trips? Is fuel economy remotely important?
Not saying a crate engine won't do those things, but a good engine builder can help you choose and build what's right for you.