That's it. The trick is to set it to the extreme limit of the specification - 17 degrees. You'll get noticeably better throttle response there. Advanced timing helps power, but can cause knocking or pinging. The EFI computer *should* "hear" this and back off the timing to prevent engine damage, at which point it may run worse than if you had kept the timing conservative. Mine didn't benefit from going beyond 17. I always run 91 octane or better gas too, which lets you push the timing farther without trouble.