What is the engine size? Has it been modified in any way? Engine wise anyway.

My grand has a V8 4.7L and has been slightly modified with the cold air intake, and a larger throttle body. I can with ease get the rear end to do some funny things on dry pavement. Forget driving on snow been there done that, no traction at all just wheel spin.
All this due to squeral problems. <img src="/forums/images/graemlins/smile.gif" alt="" />
just wondering