460 with cobra jet heads and fairly mild cam.  C-6 (for now) built to handle some power.  The Bronco sat inside a shed for 20 years after being painted and nearly finished.  It was a father and son project that the son did not want once it was nearly done.  I bought it 3 years ago and basically replaced the drivetrain, suspension and brakes.  The body is as it was 23 years ago (well a few scars since then).