What is Mace’s Plenum spacer made up of? Michael April 26, 2023 12:54 The spacer is made out of a thermal composite plastic material. Related articles What is the total pricing of the following parts including the postage:-Throttle Body, Plenum Spacers and 1.98:1 ratio roller rockers? For the "HOLDEN SUPERCHARER BOOST UPGRADE for SUPERCHARGED V6". What’s the factory boost rated at? Some websites said 4psi some 6psi. Would running an 8psi or 9 psi pulleybe a safer option or merely a waste of money, also im looking at installing extracto VX Commodore doesn't start on first try, oil pump, leads, filters and plugs have been changed about a year ago. Can I Paint My Manifold Insulator/Plenums Spacer? Comments 0 comments Please sign in to leave a comment.
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