Alum heads (Edel, TFS or AFR), RPM or Trick Flow intake, TFS Stage 1 (or equivalent) cam, Long Tube headers, a good tune and slicks. That's the simple recipe, the rest of it is weight and putting the power to the ground.
I bought my Edelbrock 6032's from Summit last year during the 10% off deal they had (just like this year), and when I get my RPM intake (replacing the ported Cobra I ran last year), lose a little weight and learn how to drive I should be easily in the mid 12's on motor.
