I've lost count of how many times that i've been up and down now including servicing. There's a fair bit of work there required Paul. I'm assuming that you're going to be upgrading your internals next. Definately the next thing on my list. Not much to do to on mine to get the power up again. Rods, pistons, change the modular pulley and that should see the 300bhp area. Would really need to look at getting my ATB diff then too.
Between Daz on here and myself, we have added another engine mount to stop the engine pulling back so violently. I've taken a mount from an Astra and taken part of the Astra subframe and machined my own bracket that attachs to the front of the engine/box. I've also added the Powerflex mount bush and it works a treat.