Evans waterless coolant

rich006 said
I went for a test drive with the float level set higher. Now AFR reads 13-13.5 at WOT (it was 16-17 before). More to the point, the ping is much reduced, only occurring above 70 mph at WOT (was 50 mph). And the car accelerates better at mid-range speed than before (it used to feel weak at 20-30 mph).

Down side, AFR reads around 10-11 at cruise, probably richer than I want.

Bottom line: it's a huge improvement. However, I still want it a bit richer at WOT and leaner at cruise.

With no other information, it almost sounds like you are running out of fuel the longer you keep your foot to the floor. It would be nice to be able to watch the fuel pressure over time during WOT. Unusual for a pump not to keep up with a two barrel but, as I said before check the basics. Check your plugs to see if they verify what your AFR is indicating. Nice pictures by the way!