you have 2 major choices. HEI or pertronix!
Pertronix uses stock everything just replaces your points with a magnetic pick-up. Hei is a lot better but a little more than double the price and will need plugs and new wires.
New Addition: 1982 Cherokee W/T
Engine: AMC 360 w/ Edel intake, 1.6 rockers, Class III cam, Comp pushrods, Holley truck avenger carb, headman headers, custom built exhaust
Suspension: 6" Lift 1" shackles up front
Axles: D44/AMC 20 w/4.88 and detroits
1985 Grand Wagoneer 360/727/229
TFI upgrade, 70k orginal miles will trade for the right j-truck.