Do you mean float height? That will effect mixture to some extent, the
workshop manual gives quite a precise figure for setting. In my experience
it makes little difference to driving, but for emissions testing it will be
more noticeable if it is out.
But there can be many other defects in ignition, carburation and emissions
controls that will also make it difficult to pass a test, many of which will
also affect running.
5 degrees BTDC seems low to me, Canada 74 to 76 used the 45D4 41599
distributor set to 7 degrees static, 13 degrees at 1500 rpm strobe. That is
likely to put up emissions as more of the fuel is wasted instead of being
converted to forward motion.
PaulH.
----- Original Message -----
> ... To get my
> 75 B thru' I have to get the carb ( Stromberg ) lean enough to pass.
> Besides
> adjusting the mixture on the carb to lean it out, does the float have any
> significant adjustments to assist in achieving the lean mixture.
>
> Also, once I have passed the test ( holding thumbs ) what do I have to do
> to
> bring up the performance to where it should be. I have had the vehicle
> looked
> at & worked upon by 3 different dealers & now it seems all over the place.
> The
> dist is now 5 BTDC.
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