Bj40 B to 3B engine swap (1 Viewer)

[78BJ40CRZR]

I am having my mechanic install a "3B" engine in place of my "B" engine. He doesn't know how the accelerator cable and linkage is mounted. Does anyone have pictures they can share?

Also, he had to drill the "B" motor mount brackets to make them work with the "3B" is that normal?

Thanks for your help