A friend is looking for someone really good that rebuilds Rochester QJets. He's here in the Detroit area, any leads appreciated. Thanks.
Cliff Ruggles is the man when it comes to Q-jets. He usually has a long lead time though... http://www.cliffshighperformance.com/
I am not in Detroit area, but I do build Quadrajets for all applications all over the world. Custom builds are the majority of my work for specific engine and driving needs, anything from stock cruiser to E85 fuel in a circle track car.
Pretty sure Greg only sells parts. http://quadrajetparts.com/ I'm sure Greg or Cliff would be glad to sell you all the parts you need to do it yourself.
Here on the east coast, I've been working with Ken at Everyday Performance for some time now - He has built some great performance Q-Jets for me. Shipping is not all that expensive...He is a sponsor of this site, see his site link in the vendor section