Power Valve Selection Dec 12, 2018 20:41:15 GMT -5 Quote Select PostDeselect PostLink to PostMemberGive GiftBack to Top Post by Admin on Dec 12, 2018 20:41:15 GMT -5 (image photographed from the SA-Design book, "Volume One - Carburetors: Holley Carburetors", by Dave Emanuel, ISBN 0-931472-08-03)