[voitureltd]

If it works right they do a OK job. The 7th injector mixes the atomized fuel with the forced air for distribution to the intake system. Many old modded for street cars used them. There are better ways to get it done but back then your options were limited unless you could afford it. When used you sort of have a carburetted/ fuel injected turbo. That 7th injector could not be working right especially if has not been cleaned or it is the wrong size for the build/tune like 39 lb vs a 83 lb etc.