Cam Choice
FWIW, I have the XE268 in my 360, it has a lot more compression, 10.6:1 and idles smoothly. There is no lope and I can drive the car right down below 1000rpm in 4th gear (A833OD with 3.55 gears) and it will accelerate away smoothly. It won't have the same low end manners in a 318 but it's not going to be lumpy either.