ive done abit of logging of the iat over last few years usually doing back to back highway pulls or on a rolling road dyno, with the fmic alone it was 12-15degree over ambient. with a 300cc meth nozzle with 50/50 mix it was 8-9degrees over, with 100%meth it was 10-12 degrees now with a 600cc nozzle with 50/50 mix and a external fmic sprayer im getting consistant 5-6degrees over ambient so glad its getting down