Retune my entire carb after installing new heads?

A 528 is sucking harder on the carb than a 451 for the same RPM. Lack of signal at low rpm especially with 92 degrees of overlap is what's making it difficult.

Same 1100 rpm stable idle with my old Holley 800 DP before upgrading to the 950. The PCV is needed for the bypass air.
With a four-speed, a higher idle speed is not really a problem per se since I don't run in parades ;) In the past I have searched every post I could find by those who have actually run a Mini-Express cam, and that rpm seems to be the norm.

Back to the original subject - I guess I am going to have to go through the whole carb again. MAB, IAB, TSR, IFR... sigh. At lleast jets are easy to change through the plugs in the fuel bowls.