7 at large teams to get to 16. Everyone plays 8 conference games and 4 non con games against a specific assigned conference for that year. Something like this. Adjust down to 8 and get rid of some of the lesser teams if you want.
USC
UCLA
Stanford
California
UNLV
ASU
Arizona
San Diego State
Nevada
BYU
Utah
Oregon
Oregon state
Washington
Washington state
Boise State
Colorado
Air Force
Nebraska
Iowa
Iowa state
Kansas
Kansas State
Minnesota
Missouri
Wisconsin
Northwestern
Texas
Oklahoma
Texas Tech
Oklahoma state
Texas A&M
TCU
Baylor
SMU
Houston
LSU
Alabama
Auburn
Ole Miss
Miss State
Arkansas
Memphis
Tulane
La Tech?
Tennessee
Georgia
Georgia tech
Miami
FSU
South Florida
Florida
UCF
Vanderbilt
Clemson
South Carolina
UNC
Duke
NC State
Wake Forrest
UVA
Virginia Tech
Navy
Maryland
Penn State
Pitt
West Virginia
Army
Syracuse
Rutgers
Boston College
UConn
Ohio State
Michigan
Michigan State
Purdue
Notre Dame
Illinois
Indiana
Kentucky
Louisville