For what is worth, my 66 Chevy II had a 292 with a Clifford 264 cam, 600 Edlebrock on a Clifford manifold, Stovebolt headers and a 700R4. Ran 92 primaries and 89 secondaries: I do not remember what metering rods I ended up with. It passed smog and ran great. It is ~ 2700ft here with relatively low humidity.
