I don't mean to sound like a dick but all of this stuff has been covered over and over. You just need to do some research, maybe search the old forum if you can't find enough over here. It should all be on here though, the only thing that would be different is that the ecu options have changed since some of those threads were made as Calum is out of the game and there are new players, ie. Nismotronic. You can run a de ecu on the ve with the timing advanced and it can run decent, should be around 165whp with a 2.5" ssac as long as everything is done correctly. I recommend that you just get a basic chipped ecu with window switches as it isn't that much money but the de ecu will run decently. A ve didn't come with a 2.5" exhaust from the factory and you do not need a 3" to make power. It will make more power than a 2.5" but will be a good deal louder. Do not bother with all this head stud, head gasket, rod bolt nonsense.... Just a waste of money and time with a basic ve swap. Don't make this complicated, it is easy as pie. Stock ve, chipped ecu with window switches, 2.5" ssac, 2.5" or larger exhaust, basic intake or even cone filter and that is it for a budget ve swap that should yield 170-175 whp depending on how close the tune is. Get some sr16 cams and tune it for 190 whp or n1's for higher whp figures. The stock ve ecu is a waste of time and will not allow you to take advantage of this engine as the rev limit is low and the maps aren't optimal for making power. I believe there is at least one ve swap how to sticky on this forum. Do more research as all this info is out there.
Drew
Drew