Found this on Ebay 6768 302 GM intake

[Da67Kid]

http://cgi.ebay.com/ebaymotors/Dated-1967-CAMARO-Z28-302-INTAKE-MANIFOLD-3917610-3-8-7_W0QQitemZ260363160575QQcmdZViewItemQQptZMotors_Car_Truck_Parts_Accessories?hash=item260363160575&_trksid=p4506.c0.m245&_trkparms=72%3A317%7C65%3A12%7C39%3A1%7C240%3A1318

Dated 1967 CAMARO Z28 302 INTAKE MANIFOLD 3917610 3-8-7
1968 67 68 rare mo302 mo parts gm part factory rs sbc

[Jerry@CHP]

Good luck on getting those incorrect NPT fittings out without taking the threads with them.  Don't see any welded areas so looks like a good core.

Jerry