Stock 400 Piston Boost

TT5.9mag said
You don’t really need all that stuff but an MSD 6btm is a good idea. It allows you to pull timing in relation to boost and also keep a curve in the distributor that will make the engine completely docile when not in boost. You can do it with just a curve in the distributor (like 12 degrees initial and 28 total) but you loose a lot of the drivability.
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That's actually the very box I was lookin at but I don't see how it has anything that would pull timing out......unless there's another box to add to it. ....and therein lies the reason I hate MSD. Once you get it, it's add this and add that.....