[JBCOBRA]

+1 on these guys. Very nice and top notch service/expertise

Originally Posted by SPF1061

I have a Roush 427R. I have used some of the carbs and builders you mention.
The folks that really nailed it for me were AED Performance.

AED Performance Racing Carburetors, Holley Carburetors, and Performance Holley Carburetor Parts

Check out their website. You might want to give them a call. They are very knowledgable and good folks to work with.