52F3 They are not a problem for people with any common sense knowledge but you would not believe the dumb things people did thinking they were going to make thier car faster. With a properly designed and adjusted progressive linkage they are no problem to tune. The problem comes when the outside carbs don't close at idle or they open to soon or they don't open all three carbs at full throttle. Progressive linkage is very easy for me and I could never understand what the problem was but it existed. It is sorta like some guys can time an engine by just listening to it and others can't time it with a light.

Been there, Done that, Hope to live long enough to do it again.
Big Bill
I.I.# 4698