First of all, welcome to the Mustang family, and enjoy the ride!
This cam is NOT recommended to be used in a stock motor, as the lift on this cam exceeds the tolerances for a stock motor. This cam should really only be used on an engine that has been bult. Most people that use this cam have aftermarket heads, 1.6 Roller Rockers, Aftermarket Intake, 255 LPH Fuel Pump, and a decent set of headers. If you have an automatic, a Stall Converter may be required.
If you are looking for a cam that you could run in a stock application, we recommend this cam:
As far as your question about forums, being here in Central Texas I have always been partial to places like Lone Star Stangs, DFWMustangs, and Austin Area Stangs. Now if you aren't located in Texas, you could always check out Corral.net, and SVTPerformance.com