It sounds like you're on the right track with the idle mixture adjustments. It sounds like you are describing a tip-in hesitation that you created? Did it have the hesitation before you made the adjustments? How did you determine it was rich to start with? Did it fail your emissions test? If it is running rich and you put cats on it it will just destroy the cats. Under what conditions is it rich? Idle only? Cruising? On accel?
The ignition timing should just be set to spec for that engine (whatever it cam out of) and then tune from there.
Did your Jeep have a cat before the engine swap? I think they make meet the original emission levels of the vehicle, is that right?
Sorry for so many questions but if you try to answer them I can try to help you
Has a ACCEL HEI Dist on it with Edelbrock manifold and Carter AFB Carb and 1 inch spacer.
Was rich at Cruising on first test, then it was rich on idling and cruising on second test (i didn't let it warm up much) Neither test did I drive it on highway for 30 minutes and it has old oil.
The testing says Jeep w/ Chevy 350 engine, haha .. I just have to 'pass' I won't get a waiver or anything since it's not original equipment.
They testing it as a 8 cyl motor.
Yah as I 'depress' the accelerator on load is when it starts to hesitate slightly.
It did not have the hesitation until it sat for the past 'month' without being driven. I was working on my other jeep.
I'm gonna try and put cheapo copper plugs because they burn super hot, that's why they dont last as long. Keep the same wires just to save on some cash. Change oil so no old gases shoot into the chamber.
Drive it and get it super hot on freeway and then test and hope it goes well
Seriously you might also retard the timing just before your test, that used to help in my "muscle car" days in CA. I used to block off the vacuum advance good for about 12*. Also I'm not that familier with the Carter spread bore but on afbs and holleys I also used to disconnect the linkage to the secondarys to get them to run leaner for the test.