[Healeys] Battery Cold Crank Amps

[Mark and Kathy]

I can't find any info in my old Healey manuals about
Cold Crank amps for a battery.

Any suggestions on what the CCA should be for the 3000
six cyl.   eng.

After shopping around, prices really seem to have shot up recently.   And the
higher the  CCA the more $$$$.   For now I just need a battery to start the
car and  do some minimum test driving.    Its going to sit for awhile over the
winter months when the cars in storage so keeping the cost down is of interest
right now.

Anyone been down this road?

Mark