Me too, on gappable plugs. Using them-thar quad-prong dudes now. My last
trip to Moab, last weekend, with tail winds both ways (really) I got 22.5 to
24.4 mpg. Runnin' smooth. I think the winds and the break in is contributing
to that. Hadn't gotten better than 21.5 on any tank or worse than 17.8 in
headwinds on prior trips with mountain pass climbs. TIICO now has 12K on it.

Bob Stevens
'87 Syncro Westy TIICO

Hmm.  I've checked the gap on them when I put them in and 3 of 4 need to be
adjusted.  That's an estimated average over all the plug changes done.

Mike

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