I need some advice from you guys. I have a Greddy supercharger with CAI & Exhaust and I'm going to build my motor in order to up the boost. I'm currently maxing out at 10psi with the stock pulley (yea I know it high but it is what it is) MWR suggested to upgrade the pistons before going to the 3.1" NTS pulley. So I figured since I'm going to get the pistons I'm also going to get one of their built head as well. Now this is my question, Should I get the stock compression 11:5 or 10:5 Mahle pistons and also should I get the port job on the head? The port job is an extra $600 but is it worth it? I wanted to get the 11:5 stock comp. because the max psi I'll see is probably 12-13 and I'm also going to get an intercooler either from VF or the one Exotic is going to be working on if that happens. So will this be safe or should I just go for the 10:5 and loss a little hp for safety? Also, I may have to save to get the intercooler would running water/meth be ok for the mean while? and FYI Monkeywrench will be doing all the work. Thanks in advance your comment are greatly appreciated.