HyRev 7500 ECU box

In my opinion (and it’s worth every penny you have paid for it) I don’t think there is a lot of difference for the street guy. Maybe all these different color boxes were unique back in the seventies, but ignition electronics have advanced to a point where this stuff is a commodity. Most of it is made overseas anyway. For $19 you can run the experiment & see if the Walmart version works for you.