My take on the oiling system crossover tube for the small block

CMcAllister said

The crossover tube is crap. The left side galley should be dry. The only reason for oil there is hydraulic lifters or oil through pushrods and I wouldn't use either of those either. Not with OE style rocker shafts. However, a direct oil auxiliary line putting oil into the front of the right galley is a good idea. This can be plumbed to the passages at the back of the block, the filter adapter or wherever and run under the intake or externally to the front of the block.

Click to expand...

I used to run my motor the way you described with the driver side dry.
With my current build I am trying a set of these new roller lifters with bushings instead of needle bearings in the axles of the lifters. These want a little bit of oil. I have bushed the block both banks and the lifter bushings have a .030 feed hole. I have run a jumper line over to the drivers side.
I am also front oiling the passenger galley as you have said(externally on an X block). Now imho front oiling completely
Eliminates velocity in the galley because of opposing pressures.
As I have said in another post, I believe all three methods essentially achieve the same thing to improve the distribution to the main bearings from the galley.