Information is the key to better performance. It used to be that if you had a tach, oil pressure, water temp, and voltmeter that was all you really needed. But things have changed.
Some may be content to live in blissful ignorance of carbureted air/fuel ratio, but all hot rodders are control freaks of the first order and in this new century need to know much more than their ancestors—especially if you’re driving a carbureted street engine. Give a modern hot rodder an affordable way to measure air/fuel ratio and most will jump at the chance.
Of course, air/fuel ratio meters are nothing new—they’ve been around for a long time. But the folks at Fuel Air Spark Technology (FAST) have come up with an even better mousetrap. The results are still the same, it’s just that now they can give you more performance for less money.
Previous systems
