air pump

[Sam Gentry <hsgentry@cfw.com>]

I have seen this question before, but did not pay enough attention.

We just got the 80 spit running and it works well EXCEPT:  When we rev the
engine and let it coast down it backfires and gets very rich.  Works great
if we eliminate the air pump.  Any ideas?  I would like to keep the
emission stock if possible.

Sam