Yeah, couple of us did many side jobs on flat camshafts in GM cars. We did a lot of R&R on 4 cylinder Vega engines in the 1970s too.
Camshaft jobs we poured solvent in the valley of the block (intake off) that drained directly out the oil pan drain. Before the intake was installed we poured oil in. Also used a GM oil suppliment additive.
Camshaft jobs we poured solvent in the valley of the block (intake off) that drained directly out the oil pan drain. Before the intake was installed we poured oil in. Also used a GM oil suppliment additive.