Whats my box tuned to?

Terry6405 Silver Member Username: Terry6405 Sullivan, IN US Post Number: 217 Registered: Sep-05	Posted on Sunday, February 05, 2006 - 17:43 GMT how can i calculate what my box is tuned to? is there a site? i see fot circular ports bot what about rectangular ports?
Mitchell Stone Silver Member Username: Goatin U.S.A Post Number: 157 Registered: Jan-06	Posted on Sunday, February 05, 2006 - 17:47 GMT If you can figure it out here is one http://www.bcae1.com/spboxnew2.htm