You will make more power w/an intercooler than installing lumps. You would make more power running methanol injection over an intercooler. When you install an intercooler, you can run more boost.
When the air & fuel is being forced into the combustion chambers from your turbocharger, the port layout/design does not play as an important role as to a N/A engine does.
Save your money,get a cylinder head w/larger valves installed, stiffer springs, mild port job & a camshaft.
The stock camshaft you have is killing the possible HP you could possibly get amongst other things, IE valves too small, no porting etc.
