blown 440 timing help...

Chinese adjustable timing light . . . ????
As most things made in Chy-Nah.

Set the timing light to zero and time it the old fashioned way. Get to TDC then back it up to 12* BTDC on the indicator at the front Damper. Then lock down the distributor and recheck again.

Borrow another timing light from a friend to double check your light is reading correct. Sometimes you can flip the Clip 180* for the Pickup of the timing light on the #1 spark plug wire so the timing light will read correctly. Have had that problem before.

Good Luck