My personal bolt on favorites for a street car with 3.23's's:

Holley 750 vacuum secondary (never had luck with Carters or Edelbrocks performing the same.)

Holley Street Dominator painted orange to disguise it somewhat.

Hedman 78030 headers.

2800 stall convertor

.528 MP cam. Very slight lope, excellent torque, great rpm! Love that cam! Second choice would be .484 hydraulic.

Stealth heads if funds allow.