C16 AF Question

[SCOOBY DOO]

I have a friends GN I'm gonna be tuning in the spring. He's gonna be running straight C16. He's not looking to run a world record number...so I'm basically looking for a safe AF to target. The engine has aluminum heads and stock compression ratio. TIA.

 

[SS/GN]

With the cost of C-16 I don't think he will be racing much Sell him your alchy kit and be done. I am curious to the A/F # vs lower octane fuels.