Smallish roller cam for DD 318LA

Rockauto lists this

SEALED POWER Part # CS1557
Hydraulic Roller; (050) Duration at .050 Lobe Lift; 195 Exh.; 197 Int

For an 89 B250 5.9

Intake Lift 0.2703
Exhaust Lift .2645
Intake Duration 197
Exhaust Duration 195


Closeout- $105

Seems a little tame.

I think my 318 roller LA cam spec is wrong.
I have 391/391 240/240