D^2 wrote > Hugh, I think I had read that article when you published it. They agreed > that there was no advantage in running premium gas, but I do not recall if > they had actually played with the timing. My guess is that they did > not. But again, given how tough it is to play with the 58's timing, I > don't blame them.... They specifically state they did try to advance timing but achieved no beneficial result. As for his car going 'faster' than mine, maybe so. Maybe. Mine is set up the way that suits me just fine. I have no complaints about available power at any point, plus not only am I paying way less for gas per gallon, I suspect I am getting better mileage, too. I could be wrong. Hugh