where can i find a performance ecm for my 1990 pontiac sunbird gt?

[Daniel]

id like to tune my car but i cant find the dang chip anywhere.

 

[BFH]

Go big or go home:
http://www.aempower.com/ViewCategory.aspx?CategoryID=62

If you increase your boost, don't forget you'll need more fuel, and to watch your timing advance.