Reading the Harmonic Balancer

[thedugan]

When I read thru the Accel Dual-sync instructions it wants you to bring it to TDC then phase the distributor for the cam and crank LED's. Then lock it

Then turn the motor to 23-30 BTDC and then phase the rotor. If I follow these instructions then how the heck do you turn the motor backwards? I turn the motor on the balancer bolt so if I turn it backwards the bolt would back out? Like before I'm missing something here? confused. Help.
Jegs and summit sell the Proform tool that would work but there must be simpler way. I cannot get to the flywheel to turn it, the scattershield is in the way.