'Completely lost' is probably pretty accurate, now that I think about it.

Part of the problem is that much of the resource material available regarding Webers says things like "get the main jet right and leave it at that" or "the engine will be using the main circuit above 3000-3500 rpms." I've been mystified to think that a carburetor might actually know how many revs the engine is turning (or that any author might think they could convince me of such); but I've been under the impression that the main circuit's influence is more significant at lower rpms than what I think you're saying.

You've probably seen or heard some of this 'information.'

The acc pump and discharge are what was recommended for the SC initially.

On the one hand, I'd like to work with what I have and see how good I can make it function. On the other, John (Parker) says that he's able to get substantially better economy with the Mikuni (in a 142 with 4.30 gears and M40, no less) than I am with a lighter car, 4.10 rear and M41.

The Mikuni gets more interesting. I had considered playing with an SU also - but at some point, my interest in experimenting clashes with the amount of time I have available... and really, I prefer to drive the car than to fiddle with it.

I appreciate your input - thanks -

Cameron
444,122SC
Rose City