jetguy

I'm going from a pcv-catch can-back to intake (recirculating), to a no PCV-catch can-vent to atmosphere (non-recirculating). Do you think I need to get a new dyno tune to account for the blowby air not going back into the intake?

gsx2004

nope, fuel or ignition tables wont change due to where your blow-by is being vented.