Do you have a protocol for the isolation of BAC DNA using the QIAGEN Plasmid Midi Kit?
FAQ ID -881

Yes, please follow the User-Developed Protocol 'Isolation of BAC DNA using the QIAGEN Plasmid Midi Kit' (QP01).  However, we recommend that the QIAGEN Large-Construct Kit be used for the purification of BAC DNA as it contains an exonuclease buffer for the removal of gDNA.