3/4 drill or hole saw?

PAW? Where have you been man? I got a total of $19 bucks in my EFI manifold, and that was for the 17/32 bung drill bit. So frugal is the word..and the alignment will be done by placing the injectors in 6 1.5" bungs made from a 2' scrap piece of 6061 AL 1/2 pipe with a 3/4 OD. The 17/32 bit opens the ID just enough to slip in the injector to the step .400 in the hole. Seats the EV-6 type injector (thin Bosch plastic body) perfectly almost to the hilt. Put a smooth chamfer on the edge and oil the Orings, they slip right in tight) in the rail and then placing the entire thing in the pre-drilled holes, then tacking the bungs as they sit, all aligned and level. Remove the injectors and finish bungs (weld or epoxy) finish grind the overhang in the runner and your done. Injector alignment is not critical as the O ring seal is a little forgiving, but I dont see that as an issue. Fuel rail will be undrilled stock. That drill makes the perfect injector socket.