charging system

Hey all have a bit of an electrical issue with me 02 LS1 calais I replaced rear main and inlet manifold gaskets and during that time battery was disconnected. Earlier this week once everything was ready to fire up, I connected the battery and noticed the cluster did not work (gauges, no...

My battery light come up the other say and after driving 5 minutes my dash light up like a Christmas tree. Then it happened again, the second time it happened I was bringing my car to a stop and dash lights up again and car died. Was a fuel issue so replaced fuel pump and fuse and all seemed...