I know that the performance gains and MPG gains and stuff are great with injection, but just looking at that post from poor Nick on his 4 cyl. injection problems /wwwthreads_images/icons/crazy.gif, make me really love that weber carb and HEI on my 258. /wwwthreads_images/icons/smile.gif Carry a spare mechanical fuel pump, a spare coil and pickup for that HEI, and you're relatively good to go. I guess maybe I'm just simpler, or stupider (is that a word) than most, but if I had injection, most any of those systems, and I'm off camping in the middle of nowhere, and the Jeep won't start, I would have no idea where to look. Hell, if it's in my driveway and it won't start I'd have no idea.... millisecond on-times for injectors, fuel pumps inside gas tanks, mass air-flow levels, MAP sensors, idle air motors, closed loops, open loops, froot loops... /wwwthreads_images/icons/smile.gif
It's real cold up here in MA the past few or 3 weeks, single digits with -40 deg. wind chills, and the Jeep has started every day. /wwwthreads_images/icons/smile.gif
I'm not trying ot talk you out of any of the systems, but I have heard that the Howell system has chip problems, and have heard stories about guys having 4 or 5 different chips tried out in their Jeeps... the Mopar MPI pings on a lot of motors, and there's nothing you can do about it, I guess, if you don't go to the 4.0 L head swap. I don't know.
You asked for $0.02, there's mine.
Carburetor Pete. /wwwthreads_images/icons/smile.gif
88YJ, 4"susp, 33"BFGMT, 9k#winch, rear homemade swingout, reb.258, 999, 4.10, weber32/36, GMHEI.