[rotorwrench]

The Holley design for metering is better than the Stromberg design. The big problem in the modern era is the fit of the early Holley power valves and the fact that they don't make that particular design any more. Modifying the body to fit the modern power valve can be done. Charlie NY still does that stuff but we can't PM him on here any more. Holley still makes all sorts of different vacuum level power valves. A person has to use the best size number for multiple carb use. In some cases, certain power valves have to be removed and plugged so that the flow fits with the engine size for best running mixture ratio or F/A ratio. It takes some tuning to get it just right.