Tim,
I am fairly sure the pumps are rated as to how much they pump in ten cycles. That info is in most any book on Holley carburetors. I am pretty sure they squirt more than .3 cc each time.

 

Thanks Bill

 

Tim,
Still sort of does not make sense, maybe it is every 100 strokes ? I will have to dig out some of my old Holley books and dust them off and look

 

I don't recall ever having read it Bill. I'm sure it's somewhere written. But I know there's a decimal point involved. Ray Charles can see the volume of the diaphragm is nowhere near the 30 or 50. On a lark I put a horse syringe to a 50cc last summer, can't remember what it held. Wasn't squat tho.

 

Tim,
The first book I pulled off the shelf is an old Holley tech manual. It states " The accelerator pump capacity is measured by collecting the output from 10 full strokes of the pump. Thus a 30cc pump delivers 3 cc per pump shot at maximum stroke"

 

Cool. Thanks again Bill.