The carb and intake have been off my amc 401 for about a year and a half. Ran good when pulled. I can tape off the intake and sand blast it but id rather leave it to the next guy. You can dip it in purple degreaser and make it look like new. Which is what I did the last time. As for the carb, stop by and pull yours off and put this one on to see how it works for you. No problem here.