340 to 416 stroker build need advice

Moper is the man on this stuff! I would listen to what he says...i dont really know anything about this combo, and would be interested to hear how it turns out for you...only thing i would tell you though is that i hear alot of bad stuff about msd ignition boxes...the distributors not really, but ive read pages and pages of complaints of how msd boxes crap out, people send them back to msd for fixing, and they come back the same...If i was you id go with either the mp box (chrome) or something from mallory...it seems that the new stuff msd is putting out is junk