Walt, that's a very nice looking installation. The setup you're using sounds right for an IDA system, CM knows his stuff. IDFs are tuned/set up a bit differently. The real test will be under a load, that's where the road test tuning begins. The fact that it runs well under no load indicates that you're probably on the right track. You will enjoy your car all the more for having a well tuned Weberized motor, it'll run like EFI on steroids. I couldn't believe the difference when I switched to Webers.
Ernie, what does that have to do with this discussion? 347's problem is not one of overcarburetion, 36mm chokes are well within the correct range (maybe even a bit on the small side) for a hot street setup of that displacement. Don't confuse the issue.
Mike
