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Intake and exhaust manifolds


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There was a dual SU option for the A series GX head. It had oval intake ports. If you have round ports, it can still be made to work.


I made my own intake out of a stock A series manifold plus a 240z Weber DGV adapter. I machined the plenum almost all the way out of the stock intake and then machined the DGV adapter to fit the void. Then TIG welded it all together. It doubled the size of the plenum and had the Weber bolt pattern, so no adapter was required.



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