4.3 merc timing retards when given throttle

[Chuckles88]

Thunderbolt IV base timing is between 8-6. When I run it up to 2400 rpms the timing mark moves counterclockwise(backwards). What am I missing?

 

[Bt Doctur]

What am I missing?

Nothing , When the timing advances it moves the mark CCW

 

[Chuckles88]

Haha well that's the best news today. Thanks!