nitrous or p.i. swap

i was wondering what would be the better of the two,i have the money for either one..but if i go with the p.i. swap i wanna change my cams too,so what should i get :shrug:

also would it help me out to put my car on the dyno and have it tuned?
 
I did the headswap first and then the nitrous. The nice thing about the headswap, is you can use the extra Hp whenever you want and you never have to worry about filling nitrous bottles. :bang:
 
another vote for the headswap....as far as cams check out vt stage 1's or comp262 ah's both very streetable and would add another 25hp to the 50hp from the pi swap.....not to bad! then you add the nitrous.