Hey there, I am new to the forum and have a question regarding the ecm. I have a 1990 454 ss and im removing the tbi 454 and putting an 80's carbed 454 in (not sure on exact year). My question is, what do I do with the ecm? If I get rid of it do I have to rewire everything, like my ignition, headlights, power windows, ect... Obviously im not sure if everything runs through the ecm or if it only controls fuel. Any help will be greatly appreciated. Thanks.