if the manifold was made to match the D16A1 head (which is the engine in the picture - not DOHC ZC) it will not match your D16A6 head - the exhaust ports on the D16A1 as well as on the DOHC ZC are about 4mm higher in relation to the mounting bolts than the D16A6 - might be possible to match them, but depending on how it is made, it might not