Classic motorsports as stated before, Chris has done 5 carbs for us dominators and 4150's, He puts them on a dyno motor to get them set so you know they will fire on first start, Great service also, we have been burned a couple of times on e85 conversions and classic motorsports is awesome, Probably lots of good guys out there doing carbs, alls I can say is go with someone you have had some good reviews with,