We insatalled a complete MSD digital in my sons 62 300 about 10 years ago.It was an MP conversion we did before that.Just changed the reg to a new electronic one.Still had the 62 alt.Cherges fine and he runs a big stereo.Unless you have a ton of elec stuff thats all thats needed.That and the reg just hooks up like the stock points one.We always run the biggest batt we can out in.Mine is 900 CCA his is 1000.Rocky