[FC] Its Backfiring

[corvanatics@corvair.org]

Keith,
a couple of things you might want to check are:
your carb base gaskets.. top and bottom... for cracks, as well as any cracks 
in the base insulators, even of the hairline varitey....  figuring the 
backfiring could be an indication of lean burn condition on one, or both 
sides....  you might also want to recheck your mixture screws, making sure 
they're both set to the same parameters..  Also.. check the vacuum advance 
line from the right carb to the distributor for wear..
I had this happen a few times.. and on one occasion, I just had some TINY 
debris in one of the carbs either in the venturi cluster, the well, or the 
discharge needle by the venturi cluster.  
Oh.. you might even check something as simple as resetting your choke rods so 
the chokes stay closed a tad longer for the cooler weather.

hope this helps..

bob Pahl

Bonneville Corvair club
SLC  UTAH
62 Brier dlx 8 dr.
110/ 4-spd.