Hey, i have a d15b head im putting on my d16z6 block. its a low mileage head, but i bought it for 20 bux from some dude that hydro locked it and bent 2 valves. I have a IHI turbo (cant remember the other name for it) Its my understanding that the d15b head has a good cam in it stock, but should i still put a bigger/diffrent cam in it? I am looking to make 200-250 hp. (any more would be a bonus) I want to have the head ported/polished. But i guess my question is, other than the port/polish is there anything else i should do to this head to make HP? It needs valves, but should i put in stock valves, or go for aftermarket valvetrain? And if the cam i have is good for my setup should i still do springs and retainers? I am also only asking about the head work, thats what im gona be working on right now. the fuel system, boost, and other crap is on my list.