Starting my Flathead EFI build. How to ID an ECM with no label?

[kilohertz]

SUCCESS!!

I have been working on the GM TBI system as much as I can in the past month and have made some terrific progress. I machined the adapter plate for the throttle body, then polished it and mounted it on the engine. I have figured out the harness and for testing purposes have just hung it on the firewall. I am using the stock Chevy 305 ECM 1227747, just to try my ideas before I start reprogramming the internal EPROM. I bought an external fuel pump that will meet the TB requirements as I didn't want to fill the new tank with gas until I finish the fill pipe fabrication. I also had to machine another GM distributor as the TBI system uses a module and inductive pickup in the distributor. ....a video is worth 1,000 words.

More later.

Cheers

Video link

https://www.dropbox.com/s/pfm21cuj7t..._1356.mov?dl=0