Apexi Power FC: help on changing settings after reset to base map

[L18M]

I've finally 90% sure i've sorted my smoking fc issue.

Now my Power FC was mapped on large street ports T04R size tub. It is now on stock ports after a rebuild with a BW S300 turbo.
I think a base map would be better than the remap as its running a bit rich.

I've found how to revert back to base map
[etc.] -> [All Data Init.]

From the base map, How do i set the secondary injectors to 1600cc (or were they 1680cc?) and how to calculate the latency for the larger injectors?
Are there any other settings i need to amend?

Setup:
BW S300 turbo
GM 3 Bar map sensor
Greddy compression tube
stock ports
FD AIT (i think)
stock primary 550cc
bosch 1600cc (or 1680cc) secondary
3" DP back, de-cat
AP Eng Power FC

I just need to make it less rich to help with MOT then as soon as its on the road i will be planning to get a proper map as engine has been run in now.

Thanks in advance 

[L18M]

Just to confirm, secondaries are 1680cc

[L18M]

After lots of searching i've found the following but need confirmation from a more knowledgeable person if you'd be so kind

OEM primary & secondary inj: 550cc / latency .73msec
Bosch 1680cc inj / latency .45msec (@14v)

so the setting adjustment i need on the hand commander for the 1680's are:

To work out injector size correction
Old SIZE / New Size = Correction
550/1680*100 = 32.7%

To work out latency:
New Latency - Old Latency = Latency Correction
.45-.73 = -.28

If that is correct, then i now need to know which injector numbers these need to go into?

[L18M]

Anyone..?

Do these settings look right for running 550 primary, 1680 secondaries? More concerned why there no percentage figure for secondaries also latency figures. Any constructive input appreciated. Its ap engineering power FC for fc3s.