Wheels,
The look IMO is unbeatable, the torque increase feels like an additional 50ci under the hood. Be prepared for some tinkering. An easy to adjust linkage is a must, and make sure you buy the Weber Factory Tuning Manual and read it at least 6 times
, particularly the part on syncronizing. I just upgraded my 351 last fall....I'm on my 10th jetting iteration, she runs strong with no sag up to 4500 rpm. Once the weather warms, I'll get it to go to 6000 by opening up the air correctors.
Chuck