Update:

I measured the distance from the bottom of pickup on the 230/250 pickup compared to the interior clearance of the 292 pan and discovered it was 1&3/8". Leo Santucci recommends the pickup be 3/8" from the pan. I simply cut the tube and welded in an additional 1" section. A little fooling around, but it enabled me to use my existing pickup tube by simply extending it 1" to work with the deeper 292 pan.