just to add some confusion :D
Ive found that the stock FPR and injectors can easily run a td04 at 1bar. All you need is a fuel controller, such as an SAFC or SFC Hyper R, to trim the map voltage under fuel cut, at 4,5,6,7,8k rpm points.
Ive been running this for a couple days at 11.4 afr WOT...