Just a quick explanation of camshaft lobe separation, The tighter the lobe separation, the more peak torque you will have for a camshaft with otherwise all other specifications identical.
For example, say you have a basic cam, 230 @ .050"
and .500" lift with 1.5 ratio rockers.
If this cam were ground on a 114 lobe separation angle, you would have a relatively flat torque curve with good vacuum and idle behavior due to minimal intake and exhaust valve overlap.
Now take the same cam and tighten the LSA to 112*,
the torque curve has become somewhat hill shaped compared to before, with a higher peak torque but it drops off quicker as the rpms increase there is a slight lope to the idle.
Take it to 110* and now it's getting peaky and higher torque with a definite drop off not far past peak torque, a very noticable lope and idle vacuum is falling.
Now we go to 108* and the graph now looks like a mountain with torque climbing to a large peak fast but falling off fast as well, choppy idle from excessive overlap and we are needing to up the idle rpms to keep it running in gear with a stock converter.
This is due to closing the intake valve earlier and earlier as the lobes get closer together, this increases overlap so idle vacuum goes down but midrange power skyrockets. To compensate for losing power in the higher rpm range, we just increase duration to keep the valves open longer.
so you have to decide on an engine compromise between manners and barbarism.

This is a very basic explanation and wider lobe separation does have its place in performance, it's all in the application and what you are trying to do, but just remember the rule of thumb is the wider the lobe separation, the flatter the torque curve across the rpm range, so if you want a flat torque curve but also alot of torque then you must raise the cylinder pressure either with compression or forced induction or nitrous.