[mr0077]

I think what Lineslinger meant by "primaries" was that you are running your carbs in a "synchronized" arrangement (where the primaries open in unison or together) rather than the "progressive" arrangement (where the front primary opens about 1/3 before the back primary starts opening) that was stock.
The above suggestions are good ones, I agree that the angles on the arms are a little extreme. Also, on the passenger side, the little "P-shaped" link is on the outside of the bellcrank, but the stock diagram shows it on the inside. There is a rod that sticks out of the arm it is hooked to that will snag the short rod on opening and prevent it from returning to the closed position. You need to put the short rod into the bellcrank arm on the carb side of the arm.
Here are a couple of shots of my installation (if I can figure out how to insert photos).
Never mind, I can't figure it out...