Had to do some porting on the Adapter Plate flanges to fit the 20V head, but now it should flow perfectly. A few little snags like the Fuel Rail utilizes the older style Topfeed Injectors while the stock 20V topfeeds have the newer, bigger O-Rings on it. I just have to decide which route i wanna take. Any recommendations on Injectors or should i stick with the stock 350cc ones? Does anyone have GTiR injectors they wanna get rid of?