you're a brave man heading out on a long trip with a not quite sorted out car. good luck to you, I mean that! But...this is what your $300. gets you, peace of mind. My DUI, (Davis Unified Ignition, Memphis, TN} ran from day one for over 15 years, I didn't even change the cap and rotor!, and is still good to go on the next car I put it in. Now it has a new brass terminal cap/rotor. O f course it looks just like the "knockoffs", an HEI is an HEI!, they ALL look the same!, and, with DUI, if you have a problem, there is a place to send it back to, with real live people to talk to, who at least pretend to appreciate your business. I don't know all the differences, but I think they start with better cores, maybe even GM sourced. I've heard stories on some Jeep forums, about the cheapies, about the shafts breaking, bearings going bad within MONTHS, aluminum flaking off, falling into engine, etc, etc. Now, I can't substantiate those stories, all i have to tell you is my personal experience. If it seems too good to be true, it probably is. Your Eagle is a great car, good luck with it. gz