High hp?

[sideways99]

So guys, new to the forum and could use some help. Im looking to build a 97-99 gtp coupe. Here is my plan on the build so far:

http://www.3800performance.com/Merch...roduct_Count=5 Stage 6

ported heads

http://www.3800performance.com/Merch...roduct_Count=3 coil packs

http://www.3800performance.com/Merch...roduct_Count=2 head studs

http://www.3800performance.com/Merch...roduct_Count=4 better m90

http://www.3800performance.com/Merch...roduct_Count=1 slp thermostat

this seems like a good start, but what else am i missing to make high HP? except for NOS. thanks and have a great day