Carb # - 17057263
Everything is stock, jets, rods, etc, used Cliffs SR Kit at home and base plate rebuilt by him.
First day I was able to take the trans am out since summer and after a rebuild, 40 degrees and sunny out. Car was running great in the garage, good idle, good cold starts, choke works, etc, etc, no issues. I take it out on the road and immediately notice issues, as I am accelerating it stutters really bad and fails to build RPMs, felt as if I was running out of gas. I notice it slowly runs better and better as I am driving around (20+ minutes and a short 1 mile trip (Choke has been open/off for a long time), still not perfect but it is running ok, still noticeable stutter if I accelerate aggressively. After a while and everything gets hot it starts to idle around 1100, not sure what causes this, and when ever I give it gas it takes a significant amount of time for RPMs to drop back down (to 1100 in this case). Not sure what to check would like some insight, thanks.
I suspect it is running too lean but unsure what to change.