[tmsbandman]

I am playing around with my "Transmission Only" stock tune to see what I can do for max fuel economy. What is a "normal" amount of spark advance at 87 octane? It's at 1.25 right now and seems fine. Do I keep bumping it until I get valve rattle, then back down one notch? That's pretty much the drill I remember from adjusting a distributor long ago.

Thanks.