1mz-fe, Need Help

[Cinkamry]

Hi,

I am about the put a 7-25psi turbo w/intercooler in my camry v6 le 95 (paid, ordered, everything...). Some electronic and timing adjustement were done and we also worked on the motor's head (polished less than 1mm, and we are going to take off 2mm more). I also bought Iridium spark plugs ik20 which will be added with the turbo.

My question is: Do I need to buy stainless steel valves, harder springs and titanium retainers?

The car is in really great shape, the cylinders are used at 5%(about) instead of 35% as it should be for the milage (maybe it is not even the originial engine, anyway...)

I am also asking if you guys, 1mz-fe expert, has any suggestion for my car. We polished the engine (intake, exaust and gaz entries). Going to had 2¾ headers with appropriate exaust system and koni chocks and springs. I know that I got a good engine under the hood and there is many things to do

And, by any chance, how much hp do you guys think that I am going to get after those mods? 275? 300? 325?

P.S. I am also looking for an cold or short intake system for my car, CANT FIND IT ANYWHERE!

Have a good day to every toyota's owner B)