Trying to cure a few single tub glitches

[DR SCHNITZEL]

Hello everyone. After making my car single tub and put a map on from blitz i have these problems. im driving to 4500 rpm max and hardly touching boost till im happy
 
1) Running super rich. but then im running a mild ported map on a non ported motor and my base fuel pressure is 42psi (high) for safety.
 
What ive done so far: waiting for laptop to get the wideband on to check the afrs.
reduced base fpr from 42 to 35ish. The car runs better now. will check colour of plugs in the weekend. (I HOPE THIS IS SAFE)
 
2) I am getting ignition breakup after 3500rpm.
 
I assume this is because of my battery being in the boot and it isnt earthed as well as it should be. Although the connection looks sound.
 
Solution: I am going to run a wire from - back to the front of the car onto the engine then onto the shell from the engine as well as from the battery to the boot. ill see if this helps
 
3)The car is idling really high 2000 rpm.
 
What ive done so far:
 
checked for leaks: none found.
 
adjust all the throttle settings: it worked for 2 mins then rised again
 
i reduced the baseline fuel pressure: this worked for 2 minutes then rised again.
 
will a idle learning procedure cure this? If so how do i do one considering my heaters dont work?
 
 
Any other ideas or advice would be greatly appreciated...need to get idle down

[DR SCHNITZEL]

hmmmmmmmmmmmmmmmm ill update progress soon