Advice on a timing curve using the MSD Digital E-Curve Distributor

[mossyback]

I have just purchased the MSD Digital E unit and was looking for advice on setting a timing curve. The engine is a 383 chevy small block, aluminum heads, 11:1 compression, with quick fuel 750 carb w/mechanical secondaries. It's dyno power was 450 hp. The transmission is a TH350 with 3.42 rear gear ratio. I am looking to optimize fuel mileage, and will be running the vacuum advance, and use only turbo blue racing gasoline. If anyone has experience and can make a recommendation on rotary dial settings, I would greatly appreciate some input.