build around intended use of the car, not some bullshit pie in the sky bragging rights RPM limit, or HP number.
all of the criteria you laid out in your first post-- which clearly some people did.not.read. [names redacted]-- is easily attainable with a stock motor, stock stall, and the gears you currently have. add in a reground cam, whatever flavor of air gap you want to afford, and which ever brand of reasonably sized carb you are comfortable tuning.