i originally had promax restore my carbs. they even say they run them on a "mule" engine before the sent them back. the carbs looked great but there performance was not as expected in my case. there are other people to talk to (and i have) about setting up a good running sixpack setup. my opinion, first and foremost, is bob karakashian. he is known as mr sixpack and was one of the engineers for chrysler for the development of the sixpack. he is a great guy always willing to talk about what your are working on. then there is bill overcash who restores carbs and is very generous with help. i also talked to phil fish, another veteran of sixpack carbs. last but not least is a person that only know as dayclona on moparts, who had a lot of useful advice for tuning. are you looking to buy a setup or have work done to something you already have? i also think big john, if given the nudge, has a lot of knowledge to share. :worship: