Originally Posted by CB-BLR (Post 2752470)

Dave,

My weigh in on the 4150/4500 carb situation, on my BoB Maderia speced 548, is that I tried every carb I could get my hands on while my motor spent a week sitting on a dyno. The annular discharge 1050 equaled the best 4150 on the bottom end, and whooped them on the top end. It also had the smothest, most consistant AFR curves.

Chris