As far as A/F meters go, you can get them at summit for about $30. Themost
common is digital, it used to be Norskog. Now Autometer makes one. If you
don't have an O2 sensor you would have to add one, but there is a part # for
that. Common theory is that if you have dual exhausts, you can use one
gauge, because bank to bank shouldn't have major difference unless you have
real engine problems (ie valves).
It is better to go too rich than too lean, because leaning out the motor
will eventually lead to it running to hot and piston damage may occur. I
know about this from 2.2 turbos, before upping the boost, they put a/f
meters and then just make sure they are running at least 8 lights (out of
10)on the a/f meter. If they aren't, they just add fuel before increasing
the boost (which increases the O2)
As far as the O2 sensor warming up, most newer cars have 3 or 4 wire
sensors, the additional wires run to positive to warm up the sensor and make
the readings reliable much quicker. This is an easy swap for 2.2 chryslers.
I am not sure of any difference with the Imperial O2 sensors. Dick B?
They probably are the same because I've seen it done on '84 turbo cars and
my converted Imperial is '83. I plan to hook up an A/f meter to my O2
sensor (wire hanging) summer & tune the carb. There is plenty of info about
this stuff in the turbo websites, including the 3 wire upgrade and a/f meter
install, but most of it is only really applicable to EFI cars. If anybody
wants the sites e-mail me & I'll find them.
Sorry to ramble
Rob
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