First time replacing heads and weird gasket issue.

4spdragtop said
Left side is drivers side(sitting in seat). Dumbasses should lose the LH and RH, and call it DS or PS.
So the notches, ALWAYS to the left and pointed down.(think of hanging over the fender).

**EDIT, this is for a LH drive vehicle**

Thank you. Then my groves are in the correct location. What do these Grooves actually do and why do they have to be in this position?