Dammit_Dan_954

Here is my setup:

b18c1
stainless steel high comp valves (bumps comp by .2 to .3)
Skunk2 intake mani
JUN cam gears
Skunk2 Stage 2 cams
11.8:1 cp pistons stock bore
final comp around 12.0:1 to 12.1:1
will dyno tune it with a vafc for now
120-150 direct port setup
msd digital 6 plus to retard timing when I spray
mugen chipped p28 ecu
ebay 4 to 1 header with 2.5" collector

I am looking into 310cc, 370cc or 440cc. Which would be best and allow upgrades in the future while not being overkill on the current setup.