To answere some of the questions:

I run it on just the water pump to 190 degrees about 1 hour before time trials, let it soak until about 30 minutes before time trials and then warnm it again on jack stands working the trans, tran brake, so I'm sure the gas in the bowls has been changed a couple of times.

Ignition is a 1yr old 7AL-3.

Monthly engine maintainence was just performed. highest value on leakdown was 4%, compression test was 120 first hit and 230 5 hits. Within about 10psi everywhere.

I am not the best carb tuner, so the fuel curve might be off, but why would that change over the course of the first run to the second. After the first time run of the day the car becomes very predictable

Bob