If you did install the cam retarted it will make the engine lazy on the low end... I usually install my cams advanced from 4* to 6*... on my 416 in my street rod I installed it straight up at 105(its a 105 LSA cam).. I didnt want to make any more torque to raise the conv stall any higher.. its 5000 with 500 ft lbs of torque and I made 535 torque