Check Engine (Misfiring)

[TjXiong]

I had a check engine light and pepboy says it tells them the car is misfiring. The GST has 58K miles on it with some MODs, B16g, 255 walboro pump, 550cc, SAFC, Evo 3 02 housing, 2.5 custom exhaust, centerforce clutch. The car seems to misfiire when i go on 3rd at 60 reaching full boost at 16. it tends to sputter or something like that. I checked the spark plugs and they look fine. Ill get new wires and see what happens. Anything?
Sorry about my sloppy writing/post.

[turbotalon1g]

FPR fail?

[C3L1CA]

Did you actually change the plugs or just check them?