How are you coming up with those cold cranking amp numbers? If your getting them by a formula built into a hand held meter, I would not go by them.
Perform a TRUE load test on the battery. Using a carbon pile (or a resistive strip) tester, load the battery to 1/2 it's RATED cold cranking amps (in our case ~150 amps) for 15 seconds. Anytime during those 15 seconds the Voltage across the battery posts should not fall below 9.8 volts. (the higher the better)
CCA is actually a number that the manufacture comes up with in their testing lab. It is not something we can easily reverse engineer and pro-rate back into a used 2 year old battery.
Example: Lets say a NEW battery is rated at 12.6 volts, 20 amp hour, with a 300 cold cranking amps rating. After 2 years it is simple to compute the amp hour rating the battery now has but there is no easy way to TRULY tell you what the CCA rating is. It may now be a 12.6 volt 14 amp/hour battery, but we can not pro-rate that into a true CCA rating.
Bottom line. Carbon pile load test the battery to 1/2 of it's NEW RATED CCA for 15 seconds, measure the voltage and let the strongest battery win.