The standard first color pair on a 66 block is:
red/white  red/green    blue/white    black/yellow

A typical cable going to a 66 block has how many wires?:
50     25       132      33     12

Answering these questions will not qualify you for the services and pricing we offer installation companies if you are not an installation company. Installers must have a listing in the telephone section of their local yellow pages to qualify.