It all depends on the setup. I've put some stock block motors deep into the 11's. If you are going to build stay away from ebay parts and DO NOT run a block guard.
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Don't bother giving me "rep", I won't return it and I think it is stupid.
Gracie Barra Clearwater
Gyms in Clearwater, St. Pete and Port Richey
pm me if you are interested in trying a free class at any of the gyms.