80s Lean Burn distributor and Fitech EFI

Ark said
Why does a billet distributor emit less EM noise than OE distributors? Seemed like people who had new MSD billet distributors were also running into the RFI challenges. With timing control enabled and the ECU using the distributor pickup instead of reading an RPM signal off the negative side of the coil like a tachometer, the single biggest RFI issue should be eliminated. Users have the most problems getting that clean tach signal off the coil.

Do your distributors have a built-in lockout method or do they need a plate? Current ignition on the car was all built 15 years ago and the distributor was already used at that time, a total refresh of distributor/coil/wires is not the worst idea.

I would have to disagree that enabling timing control eliminates most issues. Timing control is at minimum, equally problematic, and susceptible to issues. And using an oe distributor just contributes to the problems. In my very simplistic opinion, stock distributors simply weren't what these efi units were designed for. The msd units are also plastic on the base for a SB, vs mine are all billet. RFI Can also come from anywhere. Poor plug wires, poor coil, poor wire routing. No doubt that 1000 get installed successfully, but the 10 that have issues post online. (No necessarily complaining or slinging mud, but still in the public eye of google) these tbi systems can refract rfi off the air cleaner base....off the hood, and I have personally even see engines die with the water temp sensor wire being too close to the ecu. The non timing control setup in my opinion is much less finicky. Buy if you want timing control especially, a stock distributor isn't where I would start. To answer the lockout question, the BluePrint distributors have an included lockout without any extra pieces needed. Just the passable rotor, which we also sell. Any replacement parts are all msd compatible. Also.