Here is the info, i finally found a distributor i wont mind taking apart...Kinda crude pics but does the job...
Alternative method (by Dan Stern)
That's a fine tutorial on how to install a Mopar electronic ignition box, but a GM HEI module is better. It creates a hotter spark and doesn't use a ballast resistor (which means *adios* to the failure-prone thing!). The way I do it:
1) Fetch a piece of aluminum 1/4" thick by about 2" by about 3-1/2"
2) Drill two holes in it to match the HEI module's mounting holes
3) Squirt heat sink compound on plate, put HEI module on plate, secure plate and module to inner fender.
4) Remove ballast resistor. Discard.
5) Wire module like this: http://duster318.freeservers.com/tech/hei.html
The author says you have to have the GM connector, but that's not true. All you have to do is make sure you use the correct-size female spade terminals (three of the four terminals on the module are one size, the fourth is 3/16".)
Holding the module with the convex side down or toward you, upper left is terminal"B," battery; lower left is "C," trigger; two on right are for pickup coil. "Which pickup coil wire goes to which module terminal?" is determined by trial and error. If engine is difficult to start or runs poorly after installation, swap these two wires.
So, two wires from ordinary Mopar electronic distributor go to two RH terminals, upper left "B" gets connected to coil (+) primary so that it gets +12V from ignition switch (no ballast resistor in between!), and "C" goes to coil (-) primary. The only other thing that needs to be assured is a proper module ground, but it's very difficult *not* to have this!
There is an interesting potential option to add knock sensing with corresponding ignition retard easily. There's a 5-pin HEI module specifically designed to listen to a knock sensor, which would simply have to be mounted and its wire connected to the relevant HEI module pin. I'm researching this.
6) Leave the stock coil if you want, or -- better -- use either a standalone late-model spool-type coil (GM or Mopar) or spend the $35 on an MSD Blaster, which fits the stock can-type coil bracket.
7) Open plug gaps from 0.035" to 0.045" (improved starting, idling, driveability, mileage)
8) Drive and enjoy. |