On Sunday, I replaced the Holley Street Avenger carb on my 71 383 RR w/727 slapstick with a new edelbrock 750. I went to hookup the factory stock one piece (71 and up style) kick down linkage and for some reason, after full adjustment is made at the top end of the rod, the throttle stud will not touch the back part of the oval hole in the top slide bracket when at idle. Because of this, the stud does not push the linkage back far enough for the kickdown to work during acceleration - it travels about an inch before it starts to push the slide bracket backwards. I didn't have this problem with the Holley, only with the Edelbrock. Is there a difference between big block and small block 71 and up one piece style factory linkage as far as length goes? Or is this a carb design difference in carb throttle bracket position? Any info is much appreciated!