Thermoquad low vacuum readings

yellow rose said
From those pictures, a bit too much total timing and if the fuel ring is half way up the porcelain its rich at WOT.

The fluffy carbon on the shell means it's a bit rich at cruise.

Timing I believe is still set at 25/37 which netted me highest mph at the last test n tune in October with the old 750 carb. Ran total tests from 33 to 38 but had been been staying around 35 previously. All in around 2000-2200. MPH was not much different with 35 total. (9:1 motor and likes a lot of initial)

I’ll work on leaning out WOT, give a bit more air by limiting air door a bit (according to some info from demonsizzler posts I found..)

yellow rose said
Forgot to add, I can't see enough of the plug but from what I can see, that plug is pretty hot.

That is a set of NGK BPR8ES plugs!! Should be too cold but BPR6ES looked too hot for sure. MSD 6 A box.