OK--let me be the first to provide the "mystery" values for the enlarged holes (i.e., drill bit size). I took crazyhorse's photo over to photoshop and digitally measured the enlarged image of the injector tip and the new holes. Given that the blue injector tip is 8.13 mm in diameter, the holes are now 0.49 mm diam. In our English system this equates to 0.32 inches = tip X 0.019 in. holes. These numbers are approximate, but should be pretty accurate.