[Dominik]

Thanks Tom, I liked to add a similar comment:
You want to make sure your engine does not run too retarded at idle, which will cause the headers to glow red in minutes!

Set your total advance first, but use an advance curve which allows around 16 deg at idle, if your starter can manage. I found 16 deg perfect, 20 deg too much (depending on cam).

Then soften the advance springs to get the total advance all in fast. Don't know what fuel you guys can get there and how fast your engine goes through the rpm range (short diff ratio?)

Best you do that on a dyno... This method can cause a piston to hole quickly if you don't know what you are doing!

Above applies for point distributor. I don't know if MSD has programmable ignition curve. I am also a bit concered about the corrosion under your cap...