Neil -
I've been familiar with these cars for over twenty years and never heard of
the "Anti-Stall" valve. Perhaps
you are referring to the Fuel Pressure Switch, attached to the outlet line
of the Control Pump. This switch is there to ensure adequate fuel at
start-up. The originals are no longer available, but there are several
acceptable replacements. As for smoking upon start-up, this is certainly not
designed into the EFI system. If you can't find this part, check back into
the archives on this car - I'm sure there are several references there. Bob
Harris
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