Ignition timing is an often-misunderstood concept that has a big effect on performance. An air/fuel mixture burn rate doesn't increase in direct proportion to engine rpm. Therefore, the faster the ...

Ignition timing is easily the single most important tuning adjustment on an internal-combustion engine, yet the concept of ignition curves continues to be elusive for many enthusiasts. All it takes to ...

Having a car with outrageous low-end throttle response and top-end horsepower is something every gearhead strives for. The correct combination of parts will get you close, but it’s the tune-up that ...