Hello Cudak888, I am in the process of trying to get my Magnum motor buttoned up in my Dart and I can tell you, Edelbrock STILL is having issues with this part.
How did you resolve your linkage issue? I tried to PM you but your inbox is full. Thx
1. I used the Max Wedge pin with the modifications noted above for the bellcrank. Downside is that there's a big nut at the back that doesn't look factory. I also expect it to be in the way if I ever attempt the HEI-type distributor modification (considering it, but not for the HEI - I have a 6AL in this thing at present delivering ignition; I just want to see if the larger reluctor performs better)
2. If I recall right, I bought a 1980's Ramcharger/D-series kickdown arm, cut the slot off it, and ran a thread die down it so I could put the adjustable slot on from the original 2-barrel 318. Has worked a treat ever since.