Brother of previous owner wants his car back! What to do...

Big blocks have Thier place, but I have to say the extra cubes are an old way of thinking. They saying goes "there's no replacement for displacement." that was true 20 years ago, but the turbo has become the great equilizer. That saying should now be rephrased to say "there is no replacement for displacement, unless it's turboed"
That saying should now be rephrased to say "there is no replacement for displacement, unless it's turboed".......and you want to deal with the complexity of a turbo build. For a guy that just wants to go bracket racing or have a street toy nothing is easier than cubes.....