Well...Its been a while since i've been on here so i thought i would share somemore progress on the Delta.
I have now strapped a GTX3071(Tial Exhaust housing) on it with Turbosmart Compgate 40 and totally different manifold. I had lots of fun with the last set up but couldn't deal with the screamer pipe, basically did my head in so now its routed back in the exhaust. The GTX hits hard and sounds fantastic, flat line boost curves with no creep, drop or spikes and full boost at 3200rpm but start to spool way earlier...all in all im happy again but now i think bigger brakes are in order even though i run Tarox 6 pots!!!