440 871 supercharger ?

ok this get crazy, i call dyer they said i need a 0.15 blower base gasket they have, and that a thicker gasket will cause my issue, they have delt with the issue before...now here is the crazy part, i was able to clean up the rotors and turns smooth and free....i re used the base gasket that it ran with before, it is thick about 0.30.... so i bought a new gasket from a local race store, its the only one they have for a 871 blower...so i installed it proper pattern and torq spec...it doesnt turn free, so i guess ill order a new one from dyer on mon. there install inst, said to use a thin gasket or a gas resistent sealer.