If you keep a ballast resistor in the circuit, the ignition module will work fine with a hotter coil, I have been running an Accel SuperCoil for ten years now as my 'only' ignition mode besides killing the computer, all the rest of mine is stock and it runs very well. Accel told me via email to just keep the resistor wire in there, they were right.
I have heard of folks having issues if they don't get the orange and purple pickup wires right, there is a plus and negative side there.
Here is how my stock (no computer, Nuttered) engine runs with 91 octane ESSO gas and the timing set at 8-9 BTDC using the stock carb, OEM cap, rotor and wires (from Jeep Dealership) and an Accel coil with 3.31 gears turning 33's. (while still passing emissions and giving 21 mph highway)
1st lights up the 33's 'way' too easy off a stop. 2nd hauls fast to 52 mph@4400 rpm. 3rd pulls hard to 75 mph. 4th buries the speedometer and I have 'no' urge to find out how fast 5th will go.... It also will crawl up a sand pit wall or ravine wall at 400 rpm without a chug, get too steep and it just churns the tires in...
I mean what more could I ask for out of a poor old 258?
86/00 CJ7 Laredo, 33x9.5 BFG AT's, 'glass nose to tail in '00, 'New' frame,wires and plumbing in '09. Carter BBD Carbed 4.0 HO in '10.
89 YJ Renegade. BBD Carbed 4.0 HO. Locked front and rear with 33x9.5 BFG AT's
Some Canadian Bush Jeep Runs and Build Photos: http://mikeromainjeeptrips.shutterfly.com
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