Edelbrock Performer RPM top end kit 351w

The problem is that my technical knowledge is very limited. Even though I want to learn more, that needs time.

If someone can help me figure out what is the best bang for the buck I would be open to do something different. but until then those kits look like they are made for someone like me that just wants a bit more power (just for the street) for a few thousand miles a year with great driveability without having any worries.