Car ran great, a bit down on power from high IATs...not sure there, haven't been to Dominion in a few years but definatley higher IATs now vs. the typical 20-30 deg F above ambient I've seen on track before; here it was mid-20s at lowest and a lot of 30s. Ambient was in the low 80s and humid. Boost and timing a bit lower than expected likely due to higher IATs. Coolant temps high, had to run heater most sessions to keep things in check. Tough little track without long on-boost sections to get the air moving. Knock v. low on straight 93 - clearly summer fuel now.