Come the fall I will be getting my block bored to 2 liters. I am looking to make 260 whp, so besides the obvious bigger camshafts, some supertech valves, what else am I looking at for the head? Also, do I have to go to a 3" exhaust to hit this power goal? Thanks and yes Im actively searching while posting this. What I have now:

Portflow P&P head,
ti retainers,
Toda Spec C cams,
Toda cam gears,
Toda valve springs,
CTR .25 pistons,
rc 440 injectors,
fidanza aluminum flywheel,
act hdss clutch,
SMSP 4-2-1 B18C5 Header
SMSP custom 2.5” testpipe
SMSP custom 2.5" ss cat back exhaust
Jenvey ITB’s w/ custom horns
Neptune tuned by Jeff Evans
ARP Head Studs
Outlaw Engineering IM Gasket

currently making 218 whp-146 ft/lbs not to shabby for the build. Addign a smsp header and ITB's got me like 26 more whp than I had before haha