(4) Weber 40-48 IDF velocity stacks 4 in tall Dellorto empi HPMX IDF 40-48

· EMPI HPMX SERIES. FITS :WEBER 40-48 IDF, all DELLORTO DRLA, all EMPI HPMX. · DELLORTO DRLA SERIES. · WEBER IDF SERIES. EACH CARBURETOR USES TWO STACKS, ON VW / PORSCHE APPLICATIONS THESE USE DUAL CARBURETORS SO A SET OF 4 STACKS IS NECESSARY.