With so many unknowns about the enhancements that have been done to this engine, you will probably end up doing what we used to do back in the day. Don't worry so much about initial timing, advance curve, and total advance numbers, they don't mean much with this engine. What you need to know to make it work is HOW MUCH timing will it take using this fuel. Get the engine up to operating temperature and put it a load on it. This usually will require a helper in the car while you are under the hood. Advance the timing until the pinging begins, then back it off enough the eliminate the pinging. That is ALL of the timing this motor is going to take, and that is what you really need to know. You could get more timing in the engine if you could get access to higher octane fuel. If not, you got what you got. Just my 2 cents.............Oldschool
