Got a shee with Duncan mid range motor.
seller told me to run 50/50 race gas and 91.
bike set up for glamis.
called Duncan and I was told to run 110 or higher, not mix. I asked about going +4 on timing and was told with ther port job that it’s not necessary.
1. should I go +4? Got a adjustable plate and a lightened flywheel(not installed yet)
2. race gas or mix?
3. Duncan’s “instructions” for the mid range motor is too run b9es plugs, I have always ran b8es. Why b9?