You could do it, but I don't think you would gain anything. You are exerting as much line pressure as you can with your foot pedal now, the line locks don't magnify that at all, but simply trap the pressure into the line.

You need more stall speed, and maybe some better/ tighter brakes to hold you. If I remember, you are running a Caddy engine, and that beast makes enough torque to override your brakes.

Don