Mach1,
Can you still buy 98 octane at the pumps where you live? Man I wish we could get something over the overrated 92 they sell out here. You can use this stuff to put out fires. I run 11:1 compression in two of my cars and have to buy racing gas to mix just for driving. And even my little 65 Comet with the stock 289 gets lousy mileage with our gas. But if I go out of state and buy gas, it will average about 3 to 5 miles more per gallon.
Ron