[jab]

Al,
That's a very helpful link that I discovered a couple of months ago myself, and the Synchrometer is the key to getting the job done accurately. I initially tried a Unisyn, that I had used on a 911 with webers that I had owned back in another life, but I didn't like the way it sealed and is quite primitive compared to the Synchrometer. That said, Tom Kirkham made a great point about having the stacks adjusted so they are pulling the same vacuum at idle, but NOT at part throttle, making some cylinders lean or rich in relation to each other. I will have to recheck that... Jim