Performing engine swaps is at the core of hot rodding. Dropping in a new powerplant from another vehicle is the cure for more power, better performance, and bragging rights on the street and at the ...

Holley’s Sniper throttle body fuel injector has been a big success—so what do you do to follow that up? Make it bigger—which explains the Sniper Dominator. Think of this as a regular Sniper on ...

For automobile manufacturers, another aspect besides a cam's "sweet spot" is engine emissions. Sure, that lumpity-lump camshaft sounds great and makes big power at full-song, but all those misfires ...