The aftermarkets have the ability to verify the timing also.
With an XFI (1.540 or newer software): Hit the [F5] key which will take you to the Global Parameters screen. Select "Fixed Timing" and then put a value beside it that you want the timing locked to. Then hit "Apply" at the bottom of the screen. I usually select a value that you have a known, good mark on the balancer to shoot. On BHJ balancers, I usually select 30 degrees. You willl need to adjust the Crank referance angle up or down until the timing on the balancer matches the timing you are locked to.
With a BS3 System: Select "Configuration", then "Operating Parameters Configuration". Select "Enable Timing Test" in the Static Test Timing box. Then put a value below it that you want the timing locked to. Then hit "OK" at the bottom of the screen. Once again, I usually select a value that you have a known, good mark on the balancer to shoot. On BHJ balancers, I usually select 30 degrees. You willl need to adjust the Crank referance angle up or down until the timing on the balancer matches the timing you are locked to.
With the timing set and locked, rev the engine up and verify the timing doesn't move. If it does you will need to adjust the Inductive Delay.