[KingLT1]

I would leave that up to James Short. He is a knowledgeable guy. Like I said the 225 makes more above 6500rpm with an MSD manifold. The 220 works well with stock compression and LT2 manifold. I don't know of any results off hand with the trinity/220 cam combo. My instincts tell me that manifold would be better with the 225. I just know for best driving manners, reliability, and all-around fun factor, the closer you stay to OEM the better. Lol