[mskala]

Thanks Paul.
Unless I broke something, the majority of the engine is same as before as I went
from 84 to 86mm pistons/cyl but kept the rest. The engine was fine beforehand.

I do have IDA webers. I did the cutouts on the tin around the cylinders per Wayne's
book. The distributor is the same. Thermostat found to be fully open when I
stopped the car at this high temp but later I can confirm opening at 183. Oil cooler
is same one. New spark plugs this year are NGK 7 temp rather than 8 as used
before. Last month they didn't look bad, I will check them again for any signs.
I found some manifolds that were ported larger.

I had noticed the occasional lean pop at about 2800 at very low throttle, and
that's when I plugged the 2 holes of the F26, but I don't think it worked to fix that.
It's hard to guess when the display was changing all the time, but at steady
driving it's plenty rich at 2000, maybe 14's above 3000 on highway. Unless my
sensor was bad.