The EEC-V PCM is quite sophisticated but its not difficult to MAP. What's difficult is accessing it as it uses a Ford/Visteon propriety protocol. Quite a few people have cracked it but keep the necessary information to themselves. The only firm who distribute an access software is DreamScience Flash.

The Ford MAP is pretty well optimised, but mainly for emissions, with good safety margins for reliability. It can be tweaked, but you won't see much more than 5% increase in torque on a N/A.

I run a 2.0l engine with ported induction, stage 3 head and cams, ST170 exhaust. The PCM has a Bluefin MAP giving about 150lbft torque. I recon there might be another 5% using a custom MAP or alternative ECU, but I don't think its worth the cost involved.

Martin