In an effort to adjust the transfer slots on my holley  4581 4 barrel to make them square shaped , I think I have totally goofed everything up. On examination, the slots appeared to be elongated to about an eighth inch and the only way I could see to shorten the slots to a square was to wind out the fast idle cam screw (manual choke) which I did until the screw and spring backed out all the way and fell out on the floor. I still needed more adjustment so I picked a long flat screwdriver and loosened the brass screws on the round primary throttle plates and was surprised at how much the plates would slide out of adjustment with me not knowing how to readjust them properly I am hoping someone can refer me to a source that illustrates how to seat and adjust the throttle plates properly and also what setting the fast idle cam should be set to. And finally if I can get everything back to where it was, How DO you adjust the transfer slot?  Edelbrock is starting to sound pretty good. Funny with several well meaning people advising me  and having sorted through numerous holley videos on line , I could find nothing telling me how to adjust the slot, only that it needed to be square shaped.  Thanks    George