Got my complete MSD ignition setup today

I have run msd for years, not sure on throttle response or easier starting. I know with the cam I have it helps keep the plugs clean. Never had it happen to me, but the boxes do die. I would almost keep the box you have now in the car as a spare. FBO makes a 10 deg bushing for the advance so you can run a bunch of initial to make the idle easier. The oil filled coils are not supposed to be mounted horizontally. That being said I have done it for years with no issues.