Where to get Rom 11 Blocker

[spyder98]

Ok i unlocked a bev rom 11 card and converted it to use on dish ,now I need a Rom 11 blocker. Does any one know how to make one or where to get one . I am going to run this on a 7200 so I need to add custom tiers so it won't get over loaded.
Thanks,
Spyder98

[dssturbo1]

GCSB 2.51 works for Rom 3, 10 and 11