If you are going to drive the car on the street, I would stick with the side draft options. I know that the Weber guys are going to pitch a bitch, but when was looking to rid myself of the flat tops I did a bunch of searching and based my decision this way. Finding #1, My motors specs, stock 240, would be a cool looking waste of $1500 to $2000 bucks. Finding #2, There were like 3 to 1 people out there with Webers looking for technical advice VS the SU owners. Finding #3, There are like 10 to 1 people out there running SU's on street cars over webers, and that means SU parts and advice were plentiful and cheap. I went with the round tops, and aside from a vapor lock issue that I recently solved, I have had zero serious issues that I couldn't solve on my own. In my OPINION, the $1000 I saved over the Mikuni's gave much more bang for the buck when looking at the overall performance of the car. But I would still love to have a set on my Lil Girl....................