Back Test Asset Allocation With Daily leverage

Back test the following -total return of sp500 with 3x leverage resetting daily -total return of long term treasuries with 3x leverage resetting daily -50/50 allocation, rebalanced annually Points -Would like to go back to 1960 if possible. -You will need to have or locate, daily total return data for sp500 and long term treasuries -need to be able to zoom on output graph or assess different periods.