weiand upper pulley jegs

Would anyone here know if the weiand 6 groove 2.66 pulleys sold through jegs and summit, work with b&m mini super chargers? I thought I read somewhere Holley owns weiand an bought the b&m brand as well? I pulled my upper pulley off to get measurements, jegs couldn't answer if there pulley they carry would work, as they didn't have one in stock to measure. They gave me the phone number for weiand. I've called an waited on line half a dozen times but just haven't been able to talk to anyone as of yet. I thought I.d ask here, it may be faster if a person here has already done this. Shaft hole is .785 and the out part where it slides into the nose of the supercharger is 1.25 these are measurements off a 3.05 upper pulley. Center to center front to back of the superchargers 4 bolts that hold it down 10 7/8 or 10 13/16 I can't get a perfect center to center with carb on an nuts on the hold down bolts. From side to side looking at it from the front of the car hold down bolts center to center is 5 1/2. Thanks for any input. I will keep trying to call them, I'm sure there busy.