Accel Pump Cam

["Myron Ware" <cmw@domain.elided>]

Hello all,
  I've got the 1-bbl Holley on my 196, and the cam that controls the 
accel pump has broken off where the arm joins the cam part.  I'm not 
sure which model carb I have, but it's whatever comes stock on a '70 
800b.  Does anyone have one (or more) of these they'd consider 
parting with?  If not, does anyone know of a NAPA part number for 
this piece, or a rebuild kit that contains it?  Thanks for any info 
you can provide (even the carb model #),
Myron
'68 800  196 3-spd D20/27/44