Holden 6cyl 9 port super charger manifold

Red motor super charger manifold suits M90 style suppercharger. The manifold is not drilled for super charger studs as this can vary depending on the drive length & blower used. Comes supplied with back fire plate, bolts, springs & back fire valve gasket. Holden Supercharger manifold to suit 6 cylinder factory 9 port red motor cylinder heads on EH to  HZ holden 149 to 202 engines. The manifold is designed to be used with terra terra charger or can be adapted to accept M90 Ford super charger, B&M or Weiand chargers also M90, Ford V6 super charger, B&M or Weiand super chargers also. This manifold features hi velocity even length runners & plenum has a provision for a blow off / back fire valve. This manifold is designed to accept radial style blower which the carby is placed on top of the supercharger. It features a shrouded centre port that aids in the even distribution of air & fuel.