www.summitracing.com/parts/tfs-30310005/make/chevrolet
Free Shipping - Trick Flow® Super 23® 175 Cylinder Heads for Small Block Chevrolet with qualifying orders of $109. Shop Cylinder Heads at Summit Racing.
www.summitracing.com
(The TFS-30310006 is the same thing but with bigger valve springs that you don't need.)
TFS-branded heads with TBI intake-manifold bolt pattern. Has center-bolt valve cover holes, so stock covers would work. Stock-size valves but that's not "really" a hold-up on a TBI engine. 2.02/1.60 on a TBI is more bragging-rights than actual performance. Extra-small combustion chamber to improve compression ratio. Hydraulic flat-tappet-compatible valve springs. Emissions-legal. (Has drilled passage for exhaust crossover, allows EGR but not excessive exhaust gas flow into intake manifold, preventing over-warming the manifold in summer.)
Made in USA although probably with imported parts--I don't know that, but I suspect it.
Downsides: Not actually in stock, estimated availability mid-June. Angled plugs may make header selection difficult. Kinda depends on HOW they're angled. An e-mail or call to TFS or perhaps Summit might clear things up.
For the record, I've got two pair of (older, different design) TFS heads with "angled" spark plugs; one pair on my 'Camino, the other on my '88 K1500. Plug access with Edelbrock shorty headers on the K1500 is WONDERFUL. Plug access with whatever brand of cheap-junk longtubes on the 'Camino is entirely adequate if not spectacular. So I'm probably biased in favor of TFS.