Thanks guys. there was no copper tube on the lifter side and the block cast date is nov '61. the 11/32 hole that may or may not be clogged, is that the hole that the lift tube to the rocker shaft goes into? what the best way to clean it? i am completey assembeled but the oil pan is off.

thanks, i will be checking the diagram in a shop manual
Mike

51 3100, 235 purs with T5 swap
54 Belair 305 & 700r4 few more months to go
I'm on a 1950 3100 that needs very little. A true barn find $1000