Dyno Day.

This is all a learning process for me. When I started out, I knew nothing about big block motors. Now I have built one. It began as a motor that would accommodate nitrous and be used primarily as a strip car. The strip closed so the focus changed to a street car without nitrous. Thus the cam profile is not ideal for its current purpose. I am not chasing any numbers or planning to race the car in any class races. Plans changed. Now I want a car that has great street manners and can go fast "enough". I am happy with the initial pulls. The car ran happily to almost 6500 rpms without any mechanical issues. Since I am not comparing myself to others and their performance , it matters not that someone has a faster car with fewer cubes. I know the TQ is going to be a thorn in my side until I change it. My skills as a driver are not going to change much as I will not be taking lessons or going to a driving school. I may only take the car to a race track 5-6 times a year. Yet, while there I want to perform. Will that mean that I need a transbrake VB and tub the rear, nope.

My next decision is what do I do with the cam? Since I am going to be changing the timing cover due to oil leaks, I will have the front of the motor off. The time to decide is now.
Roller cam, solid, Hydraulic? If I change I will connect with Porter racing heads on the recommendation from Holley Sniper forums to get a new camshaft. Once it is together, then I can focus on street manners as well as strip technique and performance.

In short, yes, I am happy with the start of the project. But, hobbies are never done. Much has been learned and still much to be learned, Thanks everyone who has helped along the way.

I hope this answered your questions in a nice way. Rereading it I may have come across annoyed. I am not at all annoyed and appreciate the thoughtful questions. Sorry If my answers seemed in any way cross.
You won't need a transbrake to run low 10s. I don't know your idea of perform but to me that's fine.
2 step, minitub maybe but with 3.91 gears you only want 28 inch tires max to get some rpm going early.
Also like fisherman 67 said you want to take advantage of the flow potential of that head.
Oops missed the part where you want a street friendly car, sounds like you're already there