89 octane -- what's the point?

[xveganxcowboyx]

I just read that the 89 octane gas is just over flow from the low and high octane tanks and it's octane rating can change depending on which one over flows more. Anyone know anything about that?

People don't know much about octane. I just had a guy tell me (long time manager of a parts store) that he's one hundred percent sure his stock internals carb'd 350 runs much better on 100 octane so it's all he puts in it.