Getting 300hp out of an st205 3sgte reliably? Options

[Wannabesupra]

So I'm gonna be doing some work to my st205 swapped Celica over the winter and I'm wondering how much I'd be spending to make 300hp reliably (I'm running a fwd setup). Can this be done on the stock turbo? I've heard they're unstable over 18psi. And would 300fwhp be attainable with the stock fuel system? I'm likely gonna upgrade to a fuel cell since my gas tank is leaking so I'll probably have to run a different fuel pump anyways. I'm also considering a mild cam to help up the power as well. I'm thinking about going with an aftermarket ecu as well but I imagine that would set me back quite a bit money wise. Any input would be much appreciated, I'd like to see what all you 3sgte guys are running on your builds! Thanks

[CELL_PROTOTYPE_X]

I bet you could hit 300 with a good tune and a few supporting mods. I'm pushing into the 400+ range but my engine is fully built with lots of supporting mods including a larger turbo(Borg warner s256@17psi).