I have installed an electrolyzer and scrubber on my 87 wrangler w/ a 4.2 6 cyl w/ weber carb. So far so good, definate increase in MPG and performance gains. What is the difference between a gas install and diesel install? Anything special needed or is the set-up totally different? I have been told that diesel engines have no vacuum, is this true? If so how is the gas injected and where? Any help would be greatly appreciated. Happy Holidays. Only one post this time