Holley 1904 / 1957 A100 w/ 220 straight six

JDS57A100

New member
Rebuilding my Holley 1904. I have a Spring vs a Weight in The Pump Discharge Valve within the Economizer Body.
Stack up from top to bottom:
Pump Discharge Valve Retainer Screw
Spring
Small spacer (flat on one side, concave on other)
Pump Discharge Ball

Questions
1 Should I replace spring with weight (did not get one with carb kit) would need to find weight?
2 Is the spring and spacer sufficient vs Spring?
3 Spacer between spring and ball, flat side upward in contact with spring and concave down in contact with ball? (No diagram in the 1904 manual I have.
 
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