Al Gietzen wrote:

Ok, thanks, Perry.  Yes, my plugs tend to start showing the effects of lead
fouling (from examining the plugs that is what it appears to be) after about
25 hours of 100LL.  This causes the SAG (Sparkplug Attention Getter) that I,
Tracy and now you have experienced.  Same conditions, high power setting
after takeoff (when you really want all the power you can get) and the
engine drops 150-200 rpm AGgg!  So far I 've just stuck in new plugs, but I
may try cleaning some of the plugs using local airport aircraft sparkplug
cleaner just to see if it helps.

Ed Anderson

There is a fuel additive that you can get specifically
for preventing the lead fouling.  Alcor TCP concentrate
- Aircraft Spruce page 158.  Worth checking.
     
Al Gietzen 

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