Best thing to sort out before upping the bhp is getting adjustable TCA's, Quaife ATB with decent gearbox that can take hard launching, decent paddle clutch (alcon or AP - take your pick as everyone seems to disagree as to what's good or not) and make sure you stick some 14 or 15" wheels on when on the strip - road legal slicks are best but everyone has their own choice of normal road going tyres that are best.
Polybushing all the front end will probably help as well - include a strut brace in there for it too.
Oh and probably best once you've got all that stuff fitted to get it corner weighted by a garage that knows their onions
Gav Stylianou is knocking on the door of 13s and is running something like 210bhp or so - with all the stuff I've listed above he'll be well into them!
Cheers,
Andy