anyone have experience with these on the J's. Or do they even work on J's?

MSD-5 Ignition Control

The MSD 5 is our entry level multiple spark ignition control. This inductive discharge ignition is designed to be used on stock vehicles with minor performance upgrades.

Below 3,000 rpm, the MSD 5 produces a series of sparks instead of just one. This ensures that the fuel is burned completely which in turn provides more power, smooth idle, quick starts and overall driveability improvements.

The MSD 5's powerful sparks are just the ticket to enhance the power of your foreign or domestic car's ignition output. The MSD 5 can be triggered using points or the electronic amplifier on late model vehicles.

http://www.ajusa.com/cgi-bin/stores/details?vendor_code=MSD&ajr_part_number=MSD%205200&category_id=4ab6b9cca20ca7bf5025960f3274ef86&application_lookup_name=none&source=products&ajr_ske y=149f06d32e18b0d3892629416f85e890

here's the link

Its my understanding the only MSD your gonna want is the DIS-2, i dont think there are anymore that are for distributorless ignitions, i may be wrong, but i know the DIS will work, so id go with that.

ok...thanks Cory. I just wasn't sure

anyone else have anything on this?