What is static spark retard and why do we have it?

[wirthit]

Just curious. Anyone?

[ahmedabri97]

To retard timing on certain cylinders.
Stock on some LT1 cars they come filled in certain cylinders at 5600 to 6400 RPM. I normally zero it out because when it retards timing it comes as knock retard.

[wirthit]

I noticed some people zero it out. Those cylinders must be more prone to knock. I noticed it shows on total knock retard but not just plain knock retard. I guess if you're using 93 or E85 it wouldn't hurt to zero out?

[TriPinTaZ]

I always zero it out for a 93 octane tune