I have a used left hand exhaust manifold removed from a 94 GMC Yukon with a tbi 350.  It should fit all chevy and gmc pickups from 88-95 as well as SUVs with throttle body 350 v8s.  Manifold has been surfaced to insure a true flat mounting surface and painted with high heat cast iron paint.  I have also installed new collector studs/springs and I'm selling the manifold with a new donut gasket as well as exhaust manifold mounting gasket set for both sides.  New from NAPA priced at over $100.  Message with any questions, accepting all reasonable offers.  Thanks.