Just wondering which is more harmful for an engine in terms of timing - too much advance or retard.
The reason I ask is that after having my XF on the Dyno (250 Unleaded with crow cam, 465 Holly) I checked the timing and discovered that the guy had set it to 14 degrees. Is this OK or should I set it back to 10 degrees?
Thanks for your replys.
The engine did ping at full throttle in third gear on a hot day so thats why I decided to check the timing. I have since set the timing to 10 degress and the car feels just as responsive low to mid range but it does feel less willing at higher revs. However I have not had any pining since then so I think I will stick with 10 degress.
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