decided to try the monoblade with my d1 procharger. anyone have any tips on porting? particularly the area on the bottom center (hole) looks to be crankcase ventalation.

 

The hole will still be there when you cut and grind the center separater. If you want you can leave the neck on the back of hole so it will scoop air into it. I just ground everything as smooth as I could. Sorry I dont have any pics.

 

Trace the gasket and port everything within that area.

 

thanks, but i've about finished porting this one.