The screws for the bowls are M4-.7, 15 mm long.
None of my regular suppliers had them so I had to stick with the Phillips head screws for now. Now I have 142 main, 45 pilot. Took it for a ride afterwards and it seems to run fine. I didn't get a chance to really get it moving as it was 17 degrees here when I rode and I didn't feel like taking it on the highway at that time.