Highway RPMS ?

Jacobs was the hot ticket back in 2000. Some of the Crane stuff looks sorta like the Jacobs so I wonder if Crane bought them out? IDK
Back then MSD had a stand-alone unit as well. The last time I looked, maybe 5 years ago, just guessing, they still did. It looked a lil different than the pic I snagged off the Net.

HOWEVER
I took a quick look at the installation instructions. I'm NOT an electronics wizzard, but I see no reason that you couldn't cut off the MSD connector and splice the device into your factory Mopar electronic Ignition. I would call MSD and verify.