360 Advice Needed - Autocross / Street Engine Build

Just got back from some chassis dyno time. It seemed to like around 12.2:1 AFR best, with 36° timing. Was 98° ambient in the room, very hot day!

Best run was a 335hp at 6K, with 430 ftlbs at about 3K. Due to the higher stall, we couldn't test much lower.
dyno.jpg
Pretty much pulled flat through 6400rpm, didn't push it higher but I'm sure it'd be happy to!