I don't know how much you want to spend, but if your looking for cheap check out the petronix ignitor II system. It replaces the points in the original distributor with a solid state ignitor and a 45,000v flame thrower coil. It installs in a few minuets and works great. I'm running this set up in my 65 and it works great and has been very reliable. It also allows you to keep your original distributor if that is important to you.
Red 1965 coupe, 289 C-4
Edelbrock cam, intake, and carb, ported heads, try y headers, 2.5 inch dual exhaust, flowmaster 40s, electric fan, aluminum rad, disk brakes, full grab a track performance suspension, ect...
white 2003 convertible 3.8 auto
Fender-well CAI, 2.25 mandel bent dual exhaust, dynomax super turbo mufflers -Traded in but missed.
Race Red 2014 6mt Base. Barton Short throw shifter and bracket, 12" Alpine Type R and 500w Alpine amp in the trunk.
Definatly a popular modification. I've converted six diff vehicles to the stock DSII over the last couple years. For cheap, reliable and easy to find, it's hard to beat. If I were building a race vehicle I may go with a Mallory, but for a driver, still the DSII.