OK - I know there are reasons NOT to do it. I know all that! Anyway, I have a very clean 92 RS 305 auto that if it doesn't sell for a fair price I'm going to use it a starter for a 350 carb conversion. I've read all the articles. Good stuff. My ideal 350 conversion will be transparent visually - I want all the gauges and functions to work. How much of the vehicle function depends on the ECM? Is it possible to make the gauges, A/C etc all work just fine with the carb setup? Thanks.