Shift firmness and timing questions

[Power Hungry]

The timing all depends on the quality of fuel. In many cases, you can add a degree or two without problem, especially if you are at altitude. Just make sure to listen for any signs of detonation, particularly at low RPM/high load conditions where detonation usually occurs. If you stomp the throttle from a dead stop and get any rattling/detonation, then you have too much timing and need to back off the timing until the rattle stops... and then back off 1 more degree to allow for temperature fluctuations.

Obviously, this is not the best method to go adjusting timing but if you decide to make minor adjustments it is the best you can do.

Take care.