You need carbs that were designed for I/R use holleys are not, they will not deal with pulse that an I/R set up creates. If you have ever looked at A webber, notice how tall it is, its 2 or 3 times taller than A holley and that is no accident. its made for managing I/R conditions, your going to spend A lot of money on dominators and time on your manifold to find out it wont work. But if you must have an I/R set up you can start here. http://www.ronsfuel.com/single2.cfm you could use their throttle bodies with EFI. you could also try kinsler or hillborn to name A couple. This way you could get the CFM your looking for.