Gunbei,
Sorry I missed your post. I'm seldom over in this section. In any case I did not keep the Webber carbs on the 3.0. When they were tuned properly on the 2.4 that thing hummed, but the mixture is easier to manage on the fuel injected 3.0 so I gave up the Webbers. If I ever go back to the triple barrel carb set up I'm getting the PMO carbs. These things are based on the Webber design, but with significant improvements, including easier tuning. Truly audiophile carbs compared to the Webbers.