well yesterday i got her runnin pretty well gapped the plugs new o2 sensor n put a lot more timin in her n she ran pretty well still not perfect had detonation on high load/full throttle but runnin 20times better than before...but today the nightmare continued when i was tryin new timing again low n behold the headgasket went...happy days, n also had a vacuum/boost gauge on today to check boost n the effen thing would go full boost i mean the gauge only wrent to 10psi but it would just spike right to the end so i geuss thats not gonna help the matter.the line to the wastegate was on n fine, also used this line to T in the gauge so it is recievin manifold pressure, tried movin the gate arm seems to be fine springs back n all, so s**t i dunno i geuss first things first a head gasket was goin o use the au metal shim gaskets but the compression i have atm is already above factory 9.5:1 when comp tested got bout 13-1400kpa (200psi) n i think the au gaskets are slightly thinner but stronger..but after thats sorted i geuss check the wastegate operation with somethin opposite to a mighty vac ive never seen one that can give out +ve pressure tho any ideas?..n then T in a boost controller into the line set to low n see how it is then.
cheers fellas!

Finally, based on experience, a Bosch 040 will not flow enough fuel for a boosted 4L (there are some false specs around, but they only actually flow 102LPH). You need an 023, or a 044 with an in-tank kit.

Jason