I would think that front cam bearing would bleed 1/2 of it's oil to the inside and 1/2 toward the timing chain also
On the early Poly and early HEMI blocks the oil is pumped up from the front crank journal bearing passage to the front cam bearing along the way 1/2 branches off to the main lifter gallery, the other 1/2 feeds the front cam bearing which oils/drips onto the lower timing gear and the oil slings on the chain/upper gear from there, unlike the LA series (67-up) smblks where the lifter gallery passage oils the chain/gears with an orifice bolt and oil tab
