Attached is my solution to the fuel distribution issue. I made thick aluminum 4 hole spacers that bolt to the manifold with countersunk bolts, & turn the two 650 Carter AFB's 90 degrees (idle screws over the valve covers), which spreads the primaries over the ports better. Re-designing the linkage was a bit of a challange, but I think it was well worth it. Starts easily, cruises at low speeds & rpm, then hits hard & pulls to 7400 rpm.
Motor is a 470 low deck, 11.25 comp. with a relativly mild Scott Brown solid cam.