makes me wonder why people pay through the nose for them though, the redline type that is, anyway, to all those that have the holley webber, a quick question, are the secondaries on that carb mechanical operation or vacume, the one that I saw at the parts store had mechanical secondaries, when I pulled the linkage the primary opened and then when it was 2/3 open the secondary opened until they both hit wide open together, I thought the holley webers were vacume secondary or am I just mistaken????
