i dont currently have a wideband/afr at the moment.. it seems to run well, slightly rich at WOT by the look of a tiny amount of black smoke from the exhaust.. and as far as a forged engine goes, im getting a run about and going to do everything all at once including forged internals, ext. gated mani, screamer, upgraded ht's ect, lsd box and a good clutch, timing belt kit ect, plus anything else i need for it to perform and work well. ive been told 260 to 280 bhp is doable from a td04? the car wont be back on the road until all work is carried out and i know theres nothing thats going to fail in the future due to wear and tear.