PnP head is a must to break 160wHP, most of the FJ people do not have them.
Increase compression, 3/5 angle valve job (or radius), then add cams, cam gears, high flow intake manifold (not just a ported manifold), full exhaust, real CAI, 65mm TB, larger MAF, UDP, and a dyno tune.
Of course larger injectors & fuel pump.
Can be done for about $2000 if you shop around and have the head done and don't just buy one.
You just have to get away from bolt-ons for serious power.
What it boils down to is;
How much money are you willing to spend?
How much time/effort are you willing to invest?
But in the end, just have fun!
