[Bob Ashlock]

Thanks for the response, I was considering the CIS system simply for better fuel economy and improved emissions. I'm curious if anybody has actually ever tried using the CIS system on a 2.2L T engine and whether it worked satisfactorily. I have spent a considerable amount of time tweaking my Webers. They idle reasonably well, have no flat spots and make good power, but I'm always looking for improvements. It's true these carbs are great for making power, but they do have their limitations in terms of fine tuning for a perfect mix under all conditions. I have an AFR gauge continuously monitoring so its easy to see the behavior of the carbs.