so everyone makes such a big deal about the 50mm SUs...I measured mine just to see where I was at and measured 47mm...is 3mm such a big difference? I don't see how that could flow SOO much better than regular SUs with air horns. That would aproximately be like boring each intake runner on a triple weber manifold 1mm...not THAT much of a difference...
The other things like new needles and a rebuild probably do more for performance.
I guess I am just being a pessimist here...oh well.