Call a tire shop. I don't believe your small compressor will put out enough cfm's to push your 1". Remember, the second you hit the trigger, the pressure drops and your gun probably flows about 9 cfm's or better in a minute. I have a 60 gallon tank with an 8 HP gas engine powered compressor. When I use my 3/4" impact on a set of 19.5" Budd lug wheels I have to wait for it to refill after about three lugs.

A C.F.M. is a 3X3X3 cube of air at 150 p.s.i. How big is your tank again?