Ok so I'm looking to get a Skunk2 Alpha throttle body for my b18c1. My setup is a DC cai, Stock GSR TB, Skunk2 IM ported to 68mm, tri-y 4-2-1 headers, and stock internals. I put on a 70mm and it was bad ahaha. So I was thinking if I went smaller it would run better and breathe better. Help me out please!