WILL E 525 Posted March 17, 2022 If you have a HEI with a 4 pin module you can replace it with a specific 5 pin module and the 5th pin, when grounded, will retard the timing by 5 degrees. Make sure you get the correct module, there are other 5 pin modules that will not work. I used Borg/Warner:CBE22. I drilled a hole in the side of the distributor and added the green wire. I tested it yesterday and sure enough when I ground that wire my timing is retarded 5 degrees according to my adjustable timing light. Here is the before picture And the after picture It's a bit confusing because the new green wire is hard to see under the pickup's green wire and I heat shrinked it red. All I did was drill a small hole in the side of the distributor and add a gromet to help keep the water out. 4 Share this post Link to post Share on other sites
Curly 1,317 Posted March 18, 2022 What is the advantage of this? Also, judging from the oxidation on the advance weights, you have some rotor burn through going on. I would suggest you inspect the rotor for burn through under the center button. If it is there, you have high resistance in the secondary system-- plug wires, plug gap or both. 5 Share this post Link to post Share on other sites