Nah it was all done by hand with die grinder, just traced the gasket. I didnt take many pics but started by knife edging the divider then slightly open the bowls to same size as the seats, smoothed the radius of the short turn and slightly opened the ports to same size as det head then just blended it out to the marks from the gasket, i dont think id like to see any flow bench results lol.
Those are r35gtr coils from prp.
Yeah its just a cover from a hydro 25 as i dont like the look of the neo ones, rb20 cam covers on it too.
I did weld fittings in the cam covers on the other motor but these ones um i forget.....
I think those are the standard nissan ones i cut and welded with -12 fittings, you can get them push in to an but the ones i seen were straight so you had to put a 90 degree hose fitting and they stuck up and i didn't like how it looked, ill take a pic if i remember in the next day or 2