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I opted to go with the 4 seconds flat/FBO set up. After talking with Don, I am now thoroughly convinced that his set up is the only way to go....

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it's great to know that you can curve it with a kit, BUT you still need to know what you are curving it to. Don is quite knowledgable in this area, as are others

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Going with these according to Mopar Tech line these replace the stock springs that come in the distributor in the Mopar performance electronic dist. kit.

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What Dougsmopars said: grab most any electronic dist as they dont wear the bushings like the points ones do because there's no side loading from opening the points. Take it apart/clean w solvent/dry/lube/toss the heavy spring w the long loop/keep the oe light spring then drive out the roll pin and add washers to reduce the end play to almost zero and add (1) of the light springs from the aforementioned MP Summitt cellophane kit for a start. Find your ideal initial (vac gauge method has been touted) then shorten the slots for 36-38 total then play w the springs keeping it just under the pinging point @ WOT no matter where (RPM) that makes the slots max out at then plug in the vac adv (if used) & play w it. The spring experimentation is what Don will do and I have spoken w him and I was impressed also and w his knowledge he'll get you close but you can get it even closer/near perfect for your eng plus the temp/humidity he cannot forsee but the only caveat being is that it takes multiple dissassembly of the dist to get the spring combo dead on. You will get good at taking that little clip out and there's the Mallory/MP externally adjustable units (havent seen/used one yet) here's a spring chart that may help/motivate you though the 3 springs in the Crane kit are no longer available (there must be others somewhere) and only the col on the left is important as depending on your idle rpm you want it lower than the advance start point. Just remember to do each one in order and that the vac adv stays capped off until the last.

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I bought the Mallory kit a couple years ago for mine.

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I'm sure Don does wonderful work. For an all out race car i would consider sending my dizzy out. For a street car its not rocket sicience. Find what car wants for initial. Total no more then 38. No big deal. 30 bucks for a kit and a little elbow grease. Don ain't recurving them for 30 bucks.

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OK I'll give you that. But I would rather have it done right the first time and not have to re-do it because I was not as thorough as Don is. At this point in my life it is far easier to spend the $$$s. Besides his expertise is unsurpassed...

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It's not hard to do at all.

I did mine in the garage,,,took about 1/2 hour,,,,
Just need to figure out what your initial and total timing is going to be.

Weld or file the slots in the plate,,,,,
Trial and error on the springs,,,etc,,,,
cost = about nothing,,,perhaps some springs,,,plus i learned ALOT about my car,,,how to tear into the distributor and repair it,,,
Don does great work,,,but for $149 to "curve" it,,,i would try it on your own first,,,,

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