You know, now that you guys mention it, I recall that the idea of running the engine while drilling and tapping was also discussed in that previous thread.

I can't recall why the general consensus was that the location UNDER the turbo mounting flange was "the best" location - rather than somewhere up top that is accessible with the turbo still in place...

__________________
1984 300 Coupe TurboDiesel
Silver blue paint over navy blue interior
2nd owner & 2nd engine in an otherwise
99% original unmolested car
~210k miles on the clock

1986 Ford F250 4x4 Supercab
Charcoal & blue two tone paint over burgundy interior
Banks turbo, DRW, ZF-5 & SMF conversion
152k on the clock - actual mileage unknown