I couldn't be happier with my Comp XE256H cam, but I am running 9.25:1 compression. It doesn't lope much at all at an 800 rpm idle, but with the low compression of a stock motor it might do it more. This cam is in a truck and works very well. Off idle, it makes more torque than the stock cam and continues making more torque than the stock cam until the redline with is 1000 rpm higher than stock. It has a very broad, useable power band. By 3000 rpm, it really starts to pick up, over 400 ft lbs from a 350. Gives me some get up and go with those 3.07 gears in the rear and a stock torque converter.