220HP is not unusual for a standard car even when new many had over the quoted 204HP so this in reality was the minimum power, the ignition system is ok it's just an old fasioned setup for the car, the ignition system needs to be in good order so good plugs leads and rotor arm and of course the coil.

This is how the standard software operates:

A boost pressure of 0.9 BAR (13.5 PSI) will cut fuel injection completely.

Above 6,800 RPM every second fuel injection pulse is missed and turbo boost pressure reduced by 0.3 BAR (4.5 PSI)

Fuel injection is totally cut at 7000 RPM (Hard cut)

What is the exact spec of your chip?

I am just thinking you do have a T3 spec and not a T34 don't you?

Also whats your fuel pump wiring like?

Martin