+1.
Here's a pic of V8 bell crank linkage attachment that has 3 mounting screws, instead of the 2 on the 6 cyl.
Included in the pic is a gray plastic cap on the sharp end of the screw above the hole where the linkage passes through the firewall. This cap was discussed in another recent thread.
Also in this pic I noticed what appears to be an open hole almost directly above the upper right bell crank attachment screw, and another below the bell crank firewall gasket. The car is at the painter's so will check the next time I'm there. John