318 4bbl upgrade. Help

So much to my dismay something is wrong. As soon as I start my engine it over revs like the throttle is wide open. This cars is going to be the death of me.
  1. Hook the springs up first, so the throttle plates are closed. Make sure they are closed.
  2. Hook up the throttle cable. This will verify it is long enough to reach the throttle lever without opening it up.
  3. Hook up kickdown linkage. Verify when throttle is wide open (engine off) that the kickdown is 98% all the way back.
  4. Also, you can verify the fast idle for the choke isn't for some odd reason turned way up.