higher RPM fuelling up + missing

my HR31 GTS-X with RB20DET running 10psi fuels up really bad after 4000rpm or so and u can even see black smoke pouring out the exhaust! When it does it u can certainly feel it, runs like a bag of crap!

Anyone with the same problem or any solutions would be greatly appreciated.

Also put flat to floor (in any gear, it's auto) and it revs the guts out of it and wont change gears until i back off???????