ignition timing vs power
First a little bit of info for those who can't remember, the engine is a 460 with heads from a 429, diving it a compression ratio of about 10:1 or more. Now, Gas is expensive, and when I first wanted to start the motor up to see if I had everything connected(I didn't, but once I did...) I was using 87 or whatever the cheapest gas you can buy at the pump is. The engine didn't sound like it was running right, and I figured that the distributor was off. So, with the engine running I fiddled with it and fiddled with it until I got it so it sounded fine. Now, it gets HOT here in ontario, contrary to what you might think. Days recently have been 40-45 with the humidity(that's like, 110 or so I think). So like, 100 or so w/o humidity. What I'm wondering is, I'm guessing that the reason I'm able to run on such low octane gas with this compression and this heat is because I've inadvertently retarded the ignition timing. Question is, if I decided to try running on 93 octane, would I be able to gain much power by advancing the ignition? If it's only 10-15hp, I figure I'm better off saving myself the money unless I plan on taking it to the strip. Any thoughts?