Quote:
Originally Posted by Robert Swartz
1978 Ford. Trying to clarify here. Looking at the Nhra blueprint guide. For the carb size it's listed as:
Carb Sizes - 1260 x 1420/1023 x 1064
My question, what number do you use? Is this two seperate numbers for different carbs? Do both these sets of numbers come into play somehow? Forgive my ignorance, just trying to interpret the information.
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My understanding is it refers to the primary and secondary venturi and throttle bore measurements.
Jim Mantle U/V/SA 6632