got these cuties and reset the ecu, tuned it from the start, the car runs FLAWLESSLY.
I estimate the car to be above 350hp (2871R at 1bar) . i am still forced to run low ignition advance (6-8 degrees at 1bar), that makes me think the car has a lot of compression. The previous guy must have skimmed the head too much. I did a compression test and it hit 180psi.
anyway i won't be swapping heads or nothing for now, though i have everything in my parts cabinet (a whole unmolested head, a cosworth gasket etc)...maybe getting a set of cams will make the job refreshing the whole head worth it.