I have a Weber DGEV 32/36 that I'm running on a Nissan pickup, and it has a mechanical secondary. I got the carb from Redline through a dealer on the East coast, and I've been real happy with it for the last 4 or 5 years. The main difference between mine and the Holley 5200 is that the Weber uses and electric choke and the Holley has a water heated choke, but other than that, they're just about identical as far as I can tell.
