Gday all....Ok my auto 250 pre crossflow powered XA Fairmont has extractors and a 2 1/4 inch exhaust. As much as i love the car its pretty gutless. It cant even do burnouts. (yes i do now how to do burnouts) I dont no what it is, either to much weight or not enough power. Standard 250's in the XA's came with 114 kW and mine engine has only done 98,0000 miles so its not at all tired plus it has extarctors and exhaust which added a noticable difference in power when they were put on. Will different diff gears say 3.5's help me to do skids. Also what about a new cam, i rang Crow and they recomened me a cam that would give me a 15% power gain. Can anyone please help me? Thanks in advance Chris.