With the crankcase split apart, I could make a direct measurement of the intake and exhaust lift of the camshaft. I mounted the dial indicator in a step bore for the through case bolt underneath the flywheel and used the washers and nut from that bolt to hold everything securely. I took both measurements while holding slight pressure towards the flywheel to make sure the camshaft was seated against the thrust bearing and did a few rotations to make sure that both the zero point on the heel and the max lift measurements were consistent. It turns out this is in fact a split cam with different lifts for both intake and exhaust.

Intake lift @cam: 0.303 in
Exhaust lift @cam: 0.2875 in

While I haven't checked the duration, the lifts in Bill Fisher's book and the part number stamp corroborate that this is a stock cam (https://eaabuilderslog.org/?blprojentry&proj=7rri10ikZ&e=7txGgs2sj ).