Any high-performance engine needs to be cared for and properly monitored. Sometimes, factory gauges can be inaccurate or simply not specific enough for a modified car, so take a look at these ...

According to tuners that we’ve spoken to, even engines with fairly big cams will idle at 13.0:1 air/fuel ratio and might be able to handle as lean as 14:1 air/fuel ratio at part-throttle. Much of this ...