I have been trying to get these babies since November of 2009! Finally arrived earlier this week ... linkage on the way ... won't be long now!
Hope you didn't order the Offy linkage kit cause it won't work with Holly carbs, I had to fabricate my own linkage.
Not sure what linkage you got, but the 1082K linkage kit made for the manifold works fine. I could see how a universal wouldn't work because the carbs are 90 degrees out form the gas pedal. Nice custom linkage BTW!
I guess what they sent me was a more universal set, glad you made them work for ya, post a pic if you get a chance.