Quote Originally Posted by gsimpson View Post
its a mechanical injector so I am guessing I would have to build a linkage and use a regular gas pedal and cable to achieve that.

How would it affect the computer to do this?
Think of the injection pump as the heart of the engine and the computer as the brain. Then you’re saying you’re going to have the brain control everything but the heart…

It’s going to be reading all the signals and trying to adjust the fuel accordingly - but won’t be able to because “another brain” will be controlling that (mechanically).

As DMax says, you’ll have to make everything mechanical or make everything electronic.