How do you work with the westgate spring? The engine needs to be on or off. I have a chip installed and now I need to work with spring.
In installation procedure "tighten the spring until you can hear detonation and back it out two turns..."
These instruction is from Intendedacceleration..
My question is, do I work with the spring with the engine on or off? What detonation he is talking about?

Thanks