Unless you just want the 2 carb look, polish that fp-1 and put it on the shelf. The stock intake with a little grinding in the plenum and port match, along with a rejetted 5200 holley/weber performs much better. Just my experience. I think i used 6 cyl chevy rochesters (recommended at the time). The fuel line was a simple T-fitting from the stock line to both carbs. Good luck!! JT