Archives: class rules

Fuel Injection Tuning Established by Racing Class Rules

Mechanical fuel injection (MFI) is the standard in many racing categories such as drag racing, circle racing, high speed events, and slalum. All of these have restrictive rules that affect MFI setup & tuning. Top Fuel, Top Alcohol, ProMod, and several Nostalgia racing categories are examples in drag racing.  MFI provides the ability to modulate […]