You should be fine with stock injectors on that setup, I was running stock injectors at 14psi of boost, so a bit of upped compression will be fine.
Also, any brand plastiguage works really. All you do is put a small strand on the bearing journal. Torque everything to spec. loosen, then check the squished piece on the container the plastiguage came in to see bearing clearance. Should also check to make sure the piece doesnt look tapered to one end. Once done, wipe off with brake clean, and thoroughly lube the journals before reinstalling and final torque.
Should note, most stock internal bolts are torque to yield (one time use) so you will need to use the old ones for the plastiguage step, and buy new ones for final assembly.