A. Add the electronic upgrade after you get the basic Carburetor Enhancer working. You need the ‘basic’ version working or the ‘upgrade’ will not do you any good.
The electronic upgrade allows the Carburetor Enhancer to automatically ‘custom tune’ your carburetor as you drive, for maximum efficiency and performance.
The electronic upgrade gives your carburetor the ‘oxygen sensor’ fuel feedback control enjoyed by fuel injection systems.
Parts cost between $60 and $150 depending on where you get them and it takes about 16 hours to build and install.
Whatever gains you got with the basic Carburetor Enhancer, this generally doubles them. Thus if you got a 25% gain from your original mileage, you may expect another 25%.
This technology was applied to (on an OEM level) to police carburetors just before the vehicle factories switched to fuel injection.
For carburetors, it is ‘state-of-the-art’ efficiency enhancement and you can build it yourself.
Only the basic Carburetor Enhancer is needed to get economy gains out of the HyCO 2A, ER HyZor and Water Injection.
You can skip the Electronic Upgrade to the Carburetor Enhancer (or add it later) if you want maximum fuel gains.