1973 Dodge 383 Dart

The adapter moves it master to the left over towards the drivers fender. Kim

LOL...yes, the driver's side is technically the left side of the car. The offset adapter moves the M/C to the left from the perspective of sitting in the car. But no matter the semantics, the net effect is to move the M/C away from the engine and towards the fender, creating additional clearance between the M/C and valve cover.