Ever been a hair from a lower second and cant get it ?

You'll get it.
If it hooks w/ 13.5#'s in the tires, put more in them. (Less rolling resistance.)
Fix that stumble!
Remove anything that is not needed.
Like Ramcharger said, take the slapper's off. Mopar's don't need them.
Also, please respond to the idea's about front end alignment and brake adjustment, etc. You can measure toe yourself.
Maybe a ram air air cleaner? You can make that, too.
Myself, I don't think going round-robin is a good way to pick it up. Cool ambient temps or not, that thing had to be hot! Does the water pump spin w/o the engine running? If it doesn't, you should get an old Moroso set up on there. That alone would probably do it.

Maybe you should tell us more about the car, so we don't recommend things you have already done.