Does anyone use Alt 20v on turbo setup?

[Rat_gabriel]

Hi, im from brasil and building 2.0 ap engine w 2.0 20v alt head. We use to build a lot ap engines w 20v (agu,agb,agn etc...) but alt i cant find any informatio about alt specification. I has comparing w agu and i notice the adm port is the same size and the throat (i dont know how to say that in english but i mean the valve guide area) are bigger, the exaust port is smaller similar to Agb (180cv) but the throat seems to be the same size of agu. Does any one tested? Agu we have good results on vw gol:
1.9engine w agu heads and exaust agn cam
86.4mm crank
83mm bore
K27 borgwarner
8.5:1
100% ethanol
330whp 1bar
500whp 2bar
65mm eletronic throtle body

[Crasher]

The ALT is an unusual choice, which block code?