My Google-fu is failing me today.

Could someone please tell me what the MACS is for an American Lock? The core is from an 1100 if that makes a difference (it's going into a much beefier lock that came with a pretty pathetic core). Normally I don't bother with MACS since I'm usually rekeying a lock to pick it, but I'm actually going to use the lock I'm getting ready to rekey right now.