Power Valve Selection: The Definitive Answer

If you race be careful with going lean on cruise, it may effect staging AFR. My street strip car will cruise at 15:1 but it runs to lean at the track when I stage at 2K foot braking, my 9.5 PV is closed. I removed the 73s and put the 74s back in up front and the car launched clean. Cruise dropped to low 14s and that's ok with me. Sometimes you have to compromise depending on how you use your car the most.