: I've been having mucho problemo with my slant,
: and I think I've found the problem: warped
: intake manifold. Check my logic.
: It will start cold great, but then as it warms
: it will no longer idle. It runs very rich
: and fouls the plugs, but pretty evenly. It
: has low vacuum (15' at sea level), yet I
: can't detect a vacuum leak with a carb
: cleaner test. I've rebuilt, replaced, or
: tested everything else (carb [Carter BBD],
: fuel pump, distributor, electronic ignition,
: coil, wires, plugs).
:
: I was leaning toward a manifold gasket, but
: then I talked to an old mechanic who said
: these engines sometimes warp their
: manifolds, which fits my problem perfectly.
: Fits when cold, not when hot. He said its
: usually under the middle two ports, which is
: why I can't find it when spraying cleaner
: over the top.

: A leaking manifold will cause a lean condition
: not rich. It would also lower your vacuum.
: Sounds like a stuck choke to me. You say the
: carb was rebuilt. Double check that the
: choke was connected and adjusted properly
: when you reinstalled the carb.
:
: Dave