Edit, Added pic for all of us truck lovers.
Need some info from the Truck experts... A few big block truck questions.
Swapping a 440 into 1978 D100 that came factory with 400 engine,

1. Will the same power brake booster still work with the RB block and still clear the valve covers? ?

2. If not? What part number booster will work?

3.Does anyone have a part number or source for a replacement oil pick up tube for the rear sump bb oil pan?
I haven't had any luck finding a listing or part number for a replacement through part stores or Melling.

Any help much appreciated. 👍👍

Thanks in advance.