Tuning a carburetor-equipped engine to perform its best with the reformulated unleaded gasoline of today can prove to be a challenge for many kit car owners and builders. Back in the days of leaded ...

While people may have biases over which method of administering fuel they think is best, engines don't give a rip. Feed them well, and they will treat you well. This is evidenced by the fact that ...

When people talk about the air/fuel ratio of their engine, do you get confused? Do they really know what they're talking about, or did they just hear someone mention it in another conversation?

We visited Jon Enyeart of Pony Carburetors in Las Cruces, New Mexico, to discuss engine tuning and carburetors and how both directly affect performance. We also consulted with Marvin McAfee at MCE ...

Fork out a few hundred quid on a little black tuning box and you could unleash a healthy dollop of extra power and torque from your tractor. Sounds tempting, doesn’t it? But what are the risks? Will ...