[dal777]

List: 4781-3
3409
double pumper

Anyone know what this came off of?
Thanks

 

[Everett#2390]

Third in the series of Dbl pumpers from Holley. Probably has plastic parts on it.
850 cfm, mechanical secondaries. Usually for 400 CID and above.

These were Holley's competitive answer for an off-the-shelf 'off-road' carb.