Peterson Fluid Systems Vacuum Regulator 1.375" HEX to -12 AN Weld Bung 08-0455
$211.13
It has been proven to regulate crankcase vacuum and hold a steady level through extensive testing. Vacuum can be regulated from as high as 29.7 in/hg down to 2 in/hg. Fits -12 port AN. Includes aluminum weld bung for valve cover.
