I used pushrod oiling in my BMP aluminum block. It was a wedge block with B1 heads and T&D rockers, so the top end details are different, but the block details should apply.
I went to a lot of trouble measuring things before building it, and it just worked fine with no mods.

Maybe this picture from my notes will be of use to you. A pic is worth a thousand words.
The cam base circle diameter can be different. Mine was 0.90" dia and my cam lobes were 0.470" lift.

BMP-World_block_lifter_bushings.jpg
1993 Daytona, 5.50 at 130mph (1/8) 1.19 sixty ft (PG). Link to 572 B1 - Part 1