Where do these belong..?

My 67 273 has them on most of the bolts but none of the studs.

There are 7 total.

The manifolds were off the car once or twice So I can't say for sure where they should be, only that there are more than 4 (one on each stud)


FSM to the rescue...
67 sb

1 washer on each of the studs
1 washer on each of the outer most bolts (screws)

Center bolts (screws) no washer.
Screenshot_20250105-191549.png