hello guys , i own a bmw e-30 with a big m30 3500cc

, i heard some people here in egypt says that if i swaped the ( CAM ) of the m30 530 3.0 L engine and put it instead of the stock cam of my engine it will make a little difference :S seriously i am not sure of what they say

, but what do u think ??shall i put this cam in my engine and what is the difference will happen after i put it ???