The crappy curve makes the motor feel smooth and happy. From 1800 to 2500 it actually feels really good. From 1000 to 1500 it dogs pretty hard, but the curve doesn't really get anywhere until 1800 so it's expected. It'll do until I can afford something better.
Finally got the DUI dizzy, and man what a difference!! You know that hope you have every time you upgrade something. The hope that it will astound you and be fully worth the money spent? The DUI distributor is fulfilled that hope 100%
My jeep is much faster now! And smoother! Money well spent!
The curve is aggressive (I didn't check, its according to the tag). It hits 24* at 2400 RPM. So with 14* initial (they recommend 12 at sea level) that gives me 36* at 2400 RPM. I power tested it and there is no pinging. DUI says to keep advancing until it pings under a power test and bring it back until it doesn't. I will do this.
Yeah, the DUI is fantastic. It pulls very hard. Now that the ignition is in order, my carb is starting to show its poor tuning. At least in the low RPM range. It hesitates on a light throttle on takeoff, which tells me my screws are lean. On a hard throttle, it doesn't hesitate, but it feels too rich.
My assumption is:
The screws are too lean.
And the power valve opens too soon.
I have a 12 inHG valve in now and that's most likely the problem. My old vac gauge was 1 or 2 inHG off so I guessed high trying to work out a bog. I have a 10.5 I'm going to put in. Then turn my screws out 1/4 turn.
Put my 8.5 inHG power valve in place of my 10.5. The overly rich symptom is completely gone. Hit the nail on the head on this one it has tons of power when I push the pedal an doesn't feel sluggish or smell bad.
I also richened the idle screw 1/8 turn to reduce the hesitation on light throttle takeoffs. This had little effect, but still helped a little. I have yet to fully set my base timing by power testing, and I think that will fix it.